{"id":54236,"date":"2025-11-27T08:37:49","date_gmt":"2025-11-27T08:37:49","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=54236"},"modified":"2026-02-21T08:29:18","modified_gmt":"2026-02-21T08:29:18","slug":"the-world-of-owasp-and-the-owasp-top-ten","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/the-world-of-owasp-and-the-owasp-top-ten\/","title":{"rendered":"The World of OWASP and the OWASP Top Ten"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h1 class=\"wp-block-heading\">\ud83c\udf0d The World of OWASP and the OWASP Top Ten<\/h1>\n\n\n\n<p><em>A complete introductory tutorial<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">1. What is OWASP?<\/h2>\n\n\n\n<p><strong>OWASP<\/strong> stands for <strong>Open Worldwide Application Security Project<\/strong>.<br>It\u2019s a <strong>non-profit foundation<\/strong> whose goal is to <strong>improve the security of software worldwide<\/strong>.<\/p>\n\n\n\n<p>Key characteristics:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Vendor-neutral<\/strong> \u2013 not owned by any company; no commercial lock-in.<\/li>\n\n\n\n<li><strong>Community-driven<\/strong> \u2013 thousands of volunteers globally.<\/li>\n\n\n\n<li><strong>Open<\/strong> \u2013 projects, standards, tools, and documentation are free.<\/li>\n\n\n\n<li><strong>Global<\/strong> \u2013 local chapters, regional conferences, global AppSec events.<\/li>\n<\/ul>\n\n\n\n<p>OWASP produces:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Standards &amp; frameworks<\/strong> \u2013 OWASP Top 10, ASVS, MASVS, SAMM, WSTG.<\/li>\n\n\n\n<li><strong>Developer guidance<\/strong> \u2013 Proactive Controls, Cheat Sheet Series.<\/li>\n\n\n\n<li><strong>Tools<\/strong> \u2013 OWASP ZAP, Dependency-Check, AMASS, etc.<\/li>\n\n\n\n<li><strong>Training resources<\/strong> \u2013 OWASP Juice Shop, Security Shepherd, talks, and docs.<\/li>\n<\/ul>\n\n\n\n<p>Mission (paraphrased):<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Make application security <strong>visible and understandable<\/strong>, so individuals and organizations can make informed decisions.<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">2. Why OWASP?<\/h2>\n\n\n\n<p>Why do security, dev, and audit teams keep talking about OWASP?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 Solves a universal problem<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Software is everywhere: web, mobile, cloud, APIs, microservices, IoT.<\/li>\n\n\n\n<li>Most organizations <strong>repeat the same security mistakes<\/strong>.<\/li>\n\n\n\n<li>OWASP gives a <strong>common language<\/strong> (e.g., \u201cBroken Access Control\u201d) and <strong>shared playbook<\/strong> for fixing those mistakes.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 De-facto industry standard<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Security programs and audits often reference OWASP Top Ten and ASVS.<\/li>\n\n\n\n<li>PCI DSS, many RFPs, and vendor security questionnaires ask whether you <strong>address OWASP Top 10 risks<\/strong>. (<a href=\"https:\/\/sucuri.net\/guides\/owasp_top_10_2021_edition\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">sucuri.net<\/a>)<\/li>\n\n\n\n<li>Consulting firms and cloud providers base their guidance on OWASP categories.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.3 Covers the entire lifecycle<\/h3>\n\n\n\n<p>OWASP is not only \u201cvulnerability lists.\u201d It covers:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Requirements &amp; design<\/strong> \u2013 ASVS, MASVS.<\/li>\n\n\n\n<li><strong>Implementation<\/strong> \u2013 Proactive Controls, Cheat Sheets.<\/li>\n\n\n\n<li><strong>Testing<\/strong> \u2013 WSTG.<\/li>\n\n\n\n<li><strong>Operations &amp; maturity<\/strong> \u2013 SAMM.<\/li>\n\n\n\n<li><strong>Awareness<\/strong> \u2013 Top 10, talks, cheat sheets.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">3. Short History of OWASP<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>2001<\/strong> \u2013 OWASP founded by Mark Curphey as an open community for web app security.<\/li>\n\n\n\n<li><strong>2003<\/strong> \u2013 First <strong>OWASP Top Ten<\/strong> published; quickly becomes the most referenced web AppSec document.<\/li>\n\n\n\n<li><strong>Mid-2000s\u20132010s<\/strong> \u2013 New projects appear:<br>ASVS (requirements standard), WSTG (testing guide), SAMM (maturity model), ZAP (DAST tool), Cheat Sheet Series.<\/li>\n\n\n\n<li><strong>2017<\/strong> \u2013 Major Top Ten refresh (e.g., \u201cBroken Authentication\u201d, \u201cSensitive Data Exposure\u201d).<\/li>\n\n\n\n<li><strong>2021<\/strong> \u2013 New Top Ten version; \u201cInsecure Design\u201d and \u201cSoftware and Data Integrity Failures\u201d added, SSRF introduced as its own category. (<a href=\"https:\/\/owasp.org\/Top10\/A00_2021_Introduction\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/li>\n\n\n\n<li><strong>2026<\/strong> \u2013 <strong>Top Ten 2026 Release Candidate<\/strong> announced with updated categories such as \u201cSoftware Supply Chain Failures\u201d and \u201cMishandling of Exceptional Conditions\u201d. (<a href=\"https:\/\/owasp.org\/Top10\/A00_2021_Introduction\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>OWASP has grown from a small mailing list into a <strong>global standard-setting foundation<\/strong> for AppSec.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">4. What is the OWASP Top Ten?<\/h2>\n\n\n\n<p>The <strong>OWASP Top Ten<\/strong> is:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>A <strong>standard awareness document<\/strong> that describes the <strong>most critical web application security risks<\/strong>, based on data from industry, bug bounties, and expert analysis. (<a href=\"https:\/\/owasp.org\/Top10\/A00_2021_Introduction\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 What exactly is in it?<\/h3>\n\n\n\n<p>Current <em>final<\/em> version: <strong>OWASP Top 10: 2021<\/strong>. Categories: (<a href=\"https:\/\/owasp.org\/Top10\/A00_2021_Introduction\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>A01 \u2013 Broken Access Control<\/strong><\/li>\n\n\n\n<li><strong>A02 \u2013 Cryptographic Failures<\/strong><\/li>\n\n\n\n<li><strong>A03 \u2013 Injection<\/strong> (includes XSS)<\/li>\n\n\n\n<li><strong>A04 \u2013 Insecure Design<\/strong><\/li>\n\n\n\n<li><strong>A05 \u2013 Security Misconfiguration<\/strong><\/li>\n\n\n\n<li><strong>A06 \u2013 Vulnerable and Outdated Components<\/strong><\/li>\n\n\n\n<li><strong>A07 \u2013 Identification and Authentication Failures<\/strong><\/li>\n\n\n\n<li><strong>A08 \u2013 Software and Data Integrity Failures<\/strong><\/li>\n\n\n\n<li><strong>A09 \u2013 Security Logging and Monitoring Failures<\/strong><\/li>\n\n\n\n<li><strong>A10 \u2013 Server-Side Request Forgery (SSRF)<\/strong><\/li>\n<\/ol>\n\n\n\n<p>There is also a <strong>2026 Release Candidate<\/strong> list that introduces tweaks (e.g., a dedicated \u201cSoftware Supply Chain Failures\u201d category), but most organizations still treat <strong>2021 as the stable baseline<\/strong> while they analyze 2026. (<a href=\"https:\/\/owasp.org\/Top10\/A00_2021_Introduction\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 What the Top Ten is <em>not<\/em><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It\u2019s <strong>not<\/strong> a complete vulnerability catalog.<\/li>\n\n\n\n<li>It\u2019s <strong>not<\/strong> a compliance checklist by itself.<\/li>\n\n\n\n<li>It\u2019s <strong>not<\/strong> a testing guide or coding standard.<\/li>\n<\/ul>\n\n\n\n<p>Think of it as:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u201cThe <strong>10 biggest families of mistakes<\/strong> you must understand and avoid.\u201d<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">5. Why the OWASP Top Ten Matters<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">5.1 For organizations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Provides a <strong>minimum security bar<\/strong> for web apps.<\/li>\n\n\n\n<li>Serves as a <strong>benchmark<\/strong> in risk assessments and vendor evaluations.<\/li>\n\n\n\n<li>Many companies make a policy: <em>\u201cNo app goes live with known OWASP Top 10 issues.\u201d<\/em><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5.2 For developers<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Easy way to understand <strong>what kinds of issues attackers actually exploit<\/strong>.<\/li>\n\n\n\n<li>Guides coding practices\u2014e.g., use parameterized queries to avoid <strong>Injection<\/strong>, enforce least privilege and deny-by-default for <strong>Broken Access Control<\/strong>.<\/li>\n\n\n\n<li>Works well with <strong>Proactive Controls<\/strong> and <strong>Cheat Sheets<\/strong> (which say <em>how<\/em> to implement defenses).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5.3 For testers &amp; auditors<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Provides a <strong>taxonomy<\/strong> for findings: \u201cThis issue is A01: Broken Access Control\u201d.<\/li>\n\n\n\n<li>Forms the <strong>skeleton of test plans<\/strong>, often backed by the OWASP Web Security Testing Guide.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">6. How the OWASP Top Ten is Created<\/h2>\n\n\n\n<p>The Top Ten is <strong>data-driven but curated<\/strong>: (<a href=\"https:\/\/owasp.org\/Top10\/A00_2021_Introduction\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Data collection<\/strong>\n<ul class=\"wp-block-list\">\n<li>Large sets of anonymized vulnerability data from security vendors, bug bounty platforms, consultancies, internal AppSec teams.<\/li>\n\n\n\n<li>Data is mapped to <strong>CWEs (Common Weakness Enumerations)<\/strong>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Statistical analysis<\/strong>\n<ul class=\"wp-block-list\">\n<li>Consider <strong>incidence rate<\/strong> (how many apps affected), <strong>exploitability<\/strong>, and <strong>impact<\/strong>.<\/li>\n\n\n\n<li>Data factors like prevalence, detectability, and technical impact are weighed.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Survey &amp; expert input<\/strong>\n<ul class=\"wp-block-list\">\n<li>A worldwide community survey lets practitioners vote on what they see as most critical risks.<\/li>\n\n\n\n<li>Some categories (e.g., earlier SSRF) came strongly from the survey, not just raw data.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Category creation &amp; mapping<\/strong>\n<ul class=\"wp-block-list\">\n<li>Many low-level CWEs are grouped into <strong>higher-level categories<\/strong> (e.g., XSS folded into Injection).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Draft \u2192 community review \u2192 final release<\/strong>\n<ul class=\"wp-block-list\">\n<li>Release Candidate (RC) is published.<\/li>\n\n\n\n<li>Feedback is collected and the <strong>final<\/strong> version is released.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">7. Deep Overview of the Top Ten 2021 (High Level)<\/h2>\n\n\n\n<p>You\u2019ll probably teach each of these as its own section or lab, so here\u2019s a <strong>compact \u201cwhat + why + example\u201d<\/strong> for each.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>A01 \u2013 Broken Access Control<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Users can act outside of intended permissions (e.g., horizontal escalations, vertical escalations, IDORs).<\/li>\n\n\n\n<li><em>Impact:<\/em> Data leakage, privilege escalation, account takeover of other users.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>A02 \u2013 Cryptographic Failures<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Wrong or missing crypto usage\u2014weak algorithms, no encryption, hardcoded keys, non-TLS, poor key management.<\/li>\n\n\n\n<li><em>Impact:<\/em> Sensitive data exposure, tampering, impersonation.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>A03 \u2013 Injection<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Untrusted data is interpreted as code\/commands (SQL, NoSQL, LDAP, OS commands, XSS, etc.).<\/li>\n\n\n\n<li><em>Impact:<\/em> Data theft, data corruption, remote code execution.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>A04 \u2013 Insecure Design<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Architectural and design flaws\u2014no threat modeling, missing security controls, insecure workflows.<\/li>\n\n\n\n<li><em>Impact:<\/em> Systemically exploitable weaknesses that can\u2019t be \u201cpatched\u201d by code fixes alone.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>A05 \u2013 Security Misconfiguration<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Default configs, unnecessary features, verbose error messages, misconfigured headers, exposed admin endpoints.<\/li>\n\n\n\n<li><em>Impact:<\/em> Attackers exploit \u201cconfiguration gaps\u201d instead of code flaws.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>A06 \u2013 Vulnerable and Outdated Components<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Using libraries, frameworks, runtimes, and OS components with known CVEs or unsupported versions.<\/li>\n\n\n\n<li><em>Impact:<\/em> Known exploits become trivial paths into your system.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>A07 \u2013 Identification and Authentication Failures<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Weak login, session fixation, missing MFA, insecure password reset flows, bad session management.<\/li>\n\n\n\n<li><em>Impact:<\/em> Account takeover, unauthorized access.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>A08 \u2013 Software and Data Integrity Failures<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Trusting software updates, CI\/CD pipelines, or data sources without integrity checks (e.g., dependency confusion, deserialization issues). (<a href=\"https:\/\/www.perallis.com\/blog\/owasp-top-10-2021-whats-new?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">perallis.com<\/a>)<\/li>\n\n\n\n<li><em>Impact:<\/em> Supply chain compromise, malicious code execution.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>A09 \u2013 Security Logging and Monitoring Failures<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Missing or poor logs, lack of alerting, no anomaly detection.<\/li>\n\n\n\n<li><em>Impact:<\/em> Breaches go undetected; forensics and incident response become extremely hard.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>A10 \u2013 Server-Side Request Forgery (SSRF)<\/strong>\n<ul class=\"wp-block-list\">\n<li><em>What:<\/em> Application makes HTTP requests to arbitrary URLs based on user input without validation.<\/li>\n\n\n\n<li><em>Impact:<\/em> Attackers pivot into internal networks, cloud metadata endpoints, or sensitive internal services. (<a href=\"https:\/\/owasp.org\/www-chapter-minneapolis-st-paul\/download\/20211216_OWASP-MSP_OWASP_Top_Ten_2021.pdf?raw=true&amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">8. OWASP Practices: Bringing Top Ten into Daily Work<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">8.1 Secure SDLC \/ DevSecOps practices<\/h3>\n\n\n\n<p>To actually \u201clive\u201d OWASP Top Ten in a team:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Define security requirements<\/strong>\n<ul class=\"wp-block-list\">\n<li>Use <strong>OWASP ASVS<\/strong> to translate Top Ten risks into concrete requirements (e.g., \u201cAll access control checks must be server-side and enforced per function\u201d).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Threat modeling<\/strong>\n<ul class=\"wp-block-list\">\n<li>Lift \u201cInsecure Design\u201d from theory into practice: model threats at feature design time, not after release.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Coding standards<\/strong>\n<ul class=\"wp-block-list\">\n<li>Adopt OWASP <strong>Proactive Controls<\/strong> (C1\u2013C10) as internal secure coding guidelines (validate inputs, encode outputs, implement access control, protect data at rest\/in transit, etc.).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Code review with security focus<\/strong>\n<ul class=\"wp-block-list\">\n<li>Add \u201cTop Ten checklist\u201d to pull-request review templates.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Automated security scanning<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>SAST<\/strong>: finds injection, insecure APIs, etc.<\/li>\n\n\n\n<li><strong>SCA (Software Composition Analysis)<\/strong>: maps dependencies to known CVEs (A06).<\/li>\n\n\n\n<li><strong>DAST<\/strong>: simulates attacks against running app (Injection, SSRF, auth flaws).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Security testing<\/strong>\n<ul class=\"wp-block-list\">\n<li>Use <strong>OWASP WSTG<\/strong> to structure manual testing around Top Ten risks.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Logging &amp; monitoring<\/strong>\n<ul class=\"wp-block-list\">\n<li>Design robust logging, correlation IDs, alerts \u2192 addresses A09.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">9. OWASP Guidelines Ecosystem (Beyond Top Ten)<\/h2>\n\n\n\n<p>To make the tutorial complete, here\u2019s how the <strong>other major OWASP standards<\/strong> relate to Top Ten:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">9.1 ASVS \u2013 Application Security Verification Standard<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <strong>detailed catalog<\/strong> of security requirements (L1, L2, L3).<\/li>\n\n\n\n<li>Each Top Ten risk corresponds to multiple ASVS controls (e.g., A01 maps to V4 Access Control, A07 to V2 Authentication).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">9.2 Proactive Controls<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The \u201cTop Ten things developers should do.\u201d<\/li>\n\n\n\n<li>Example mappings:\n<ul class=\"wp-block-list\">\n<li>C3 \u201cSecure Database Access\u201d \u2192 A03 Injection.<\/li>\n\n\n\n<li>C6 \u201cImplement Digital Identity\u201d \u2192 A07.<\/li>\n\n\n\n<li>C8 \u201cProtect Data Everywhere\u201d \u2192 A02 &amp; A08.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">9.3 WSTG \u2013 Web Security Testing Guide<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Practical test cases and checklists for each category.<\/li>\n\n\n\n<li>Example: Under <strong>Authorization Testing<\/strong>, you\u2019ll implement tests to detect A01 Broken Access Control.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">9.4 SAMM \u2013 Software Assurance Maturity Model<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Helps management plan <strong>how mature their software security process is<\/strong> (ad-hoc \u2192 defined \u2192 optimized).<\/li>\n\n\n\n<li>Ensures Top Ten and ASVS requirements are embedded in processes, not just one-time activities.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">10. OWASP Tools Relevant to Top Ten<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">10.1 Native OWASP tools<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>OWASP ZAP<\/strong>\n<ul class=\"wp-block-list\">\n<li>Interactive web proxy &amp; DAST scanner.<\/li>\n\n\n\n<li>Helps find injection, XSS, misconfigurations, auth issues.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OWASP Dependency-Check \/ Dependency-Track<\/strong>\n<ul class=\"wp-block-list\">\n<li>Scan libraries and frameworks for known vulnerabilities (A06).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OWASP AMASS<\/strong>\n<ul class=\"wp-block-list\">\n<li>Asset discovery for attack surface mapping.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OWASP Juice Shop<\/strong>\n<ul class=\"wp-block-list\">\n<li>Deliberately vulnerable app; perfect for Top Ten practice labs.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OWASP Threat Dragon \/ PyTM (community)<\/strong>\n<ul class=\"wp-block-list\">\n<li>Threat modeling, particularly for A04 Insecure Design.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">10.2 Popular external tools that implement OWASP concepts<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>SAST<\/strong>: SonarQube, Checkmarx, Fortify, etc.<\/li>\n\n\n\n<li><strong>DAST<\/strong>: Burp Suite, Netsparker, etc.<\/li>\n\n\n\n<li><strong>SCA<\/strong>: Snyk, GitHub Dependabot, JFrog Xray, etc.<\/li>\n\n\n\n<li><strong>Runtime protection \/ WAF<\/strong>: ModSecurity with OWASP Core Rule Set, cloud WAFs.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">11. Process: Adopting OWASP Top Ten in an Organization<\/h2>\n\n\n\n<p>Here\u2019s a <strong>practical adoption playbook<\/strong> you can teach as a step-by-step process.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1 \u2013 Awareness &amp; baseline<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Train developers, QA, DevOps on <strong>Top Ten<\/strong> with real examples.<\/li>\n\n\n\n<li>Run a <strong>quick scan<\/strong> (DAST + SCA) to get an initial vulnerability picture.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2 \u2013 Policy &amp; requirements<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Publish a simple policy: \u201cNew apps must not contain known OWASP Top Ten issues.\u201d<\/li>\n\n\n\n<li>Use <strong>ASVS L1\/L2<\/strong> to define what \u201csecure\u201d means for each app.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3 \u2013 Integrate into SDLC<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Add security checkpoints in:\n<ul class=\"wp-block-list\">\n<li>Requirements (threat modeling)<\/li>\n\n\n\n<li>Design reviews<\/li>\n\n\n\n<li>Code reviews (Top Ten checklist)<\/li>\n\n\n\n<li>Pre-release testing (WSTG-based tests)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 4 \u2013 Automate<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>For each repo, integrate:\n<ul class=\"wp-block-list\">\n<li>SCA (A06)<\/li>\n\n\n\n<li>SAST (A01, A03, A07, etc.)<\/li>\n\n\n\n<li>DAST (A05, A10, etc.) in pre-prod.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 5 \u2013 Improve logging and monitoring<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ensure A09 is addressed by:\n<ul class=\"wp-block-list\">\n<li>Centralized logs<\/li>\n\n\n\n<li>Security event alerts<\/li>\n\n\n\n<li>Incident runbooks.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 6 \u2013 Measure &amp; mature with SAMM<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use OWASP SAMM to assess current maturity and plan improvements.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">12. The OWASP Community &amp; \u201cTeam\u201d<\/h2>\n\n\n\n<p>OWASP isn\u2019t a vendor; it\u2019s a <strong>global community<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Board of Directors<\/strong> \u2013 elected volunteers managing the foundation.<\/li>\n\n\n\n<li><strong>Project leads<\/strong> \u2013 maintain Top Ten, ASVS, WSTG, SAMM, tools, etc.<\/li>\n\n\n\n<li><strong>Chapter leaders<\/strong> \u2013 run city\/regional meetups and events.<\/li>\n\n\n\n<li><strong>Contributors<\/strong> \u2013 write docs, maintain tools, translate, review, gather data.<\/li>\n\n\n\n<li><strong>Sponsors<\/strong> \u2013 companies that fund or contribute data and research.<\/li>\n<\/ul>\n\n\n\n<p>OWASP Top Ten specifically has its own <strong>project team<\/strong>, which:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Collects and analyzes vulnerability data.<\/li>\n\n\n\n<li>Organizes community surveys.<\/li>\n\n\n\n<li>Writes and reviews content.<\/li>\n\n\n\n<li>Engages with industry for feedback.<\/li>\n<\/ul>\n\n\n\n<p>Anyone (including you) can:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>File issues \/ PRs on GitHub.<\/li>\n\n\n\n<li>Join mailing lists &amp; Slack.<\/li>\n\n\n\n<li>Contribute test cases, examples, translations.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">13. Timeline of the OWASP Top Ten<\/h2>\n\n\n\n<p>A quick historical <strong>evolution view<\/strong> you can use as a slide:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Year<\/th><th>Version<\/th><th>Highlights<\/th><\/tr><\/thead><tbody><tr><td><strong>2003<\/strong><\/td><td>First Top 10<\/td><td>Initial awareness list for web apps.<\/td><\/tr><tr><td><strong>2004<\/strong><\/td><td>Update<\/td><td>Early refinements based on feedback.<\/td><\/tr><tr><td><strong>2007<\/strong><\/td><td>Major refresh<\/td><td>Better categorization, more data-driven.<\/td><\/tr><tr><td><strong>2010<\/strong><\/td><td>New edition<\/td><td>XSS, Injection, CSRF, etc. mainstreamed.<\/td><\/tr><tr><td><strong>2013<\/strong><\/td><td>Update<\/td><td>\u201cSensitive Data Exposure\u201d, \u201cUsing components with known vulnerabilities.\u201d<\/td><\/tr><tr><td><strong>2017<\/strong><\/td><td>2017 Top 10<\/td><td>Added \u201cInsufficient Logging &amp; Monitoring\u201d, \u201cInsecure Deserialization\u201d.<\/td><\/tr><tr><td><strong>2021<\/strong><\/td><td>2021 Top 10<\/td><td>New categories: \u201cInsecure Design\u201d, \u201cSoftware and Data Integrity Failures\u201d, SSRF; XSS folded into Injection. (<a href=\"https:\/\/owasp.org\/Top10\/A00_2021_Introduction\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/td><\/tr><tr><td><strong>2026<\/strong><\/td><td>2026 RC<\/td><td>Shifts toward supply chain, operations, exception handling; \u201cSoftware Supply Chain Failures\u201d appears as its own category. (<a href=\"https:\/\/owasp.org\/Top10\/2025\/0x00_2025-Introduction\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">14. Added Section \u2013 How to Learn &amp; Teach OWASP Top Ten (Recommended Roadmap)<\/h2>\n\n\n\n<p>This is the \u201cmissing\u201d piece that ties everything into a practical study \/ training path.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">14.1 For self-study<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Week 1\u20132 \u2013 Foundations<\/strong>\n<ul class=\"wp-block-list\">\n<li>Read the <strong>OWASP Top 10: 2021 Introduction &amp; category pages<\/strong>. (<a href=\"https:\/\/owasp.org\/Top10\/A00_2021_Introduction\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">OWASP Foundation<\/a>)<\/li>\n\n\n\n<li>Map each category to one or two memorable real-world incidents.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Week 3\u20134 \u2013 Implementation<\/strong>\n<ul class=\"wp-block-list\">\n<li>For each category:\n<ul class=\"wp-block-list\">\n<li>Find the matching <strong>Proactive Controls<\/strong> item.<\/li>\n\n\n\n<li>Identify matching <strong>ASVS controls<\/strong> (e.g., V2, V4, V5).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Week 5\u20136 \u2013 Testing<\/strong>\n<ul class=\"wp-block-list\">\n<li>Study the WSTG sections corresponding to each Top Ten category.<\/li>\n\n\n\n<li>Practice simple tests with a lab app (e.g., OWASP Juice Shop).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Week 7+ \u2013 Maturity &amp; scale<\/strong>\n<ul class=\"wp-block-list\">\n<li>Read SAMM summary; think how to embed Top Ten into org processes.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">14.2 For training others (like your courses)<\/h3>\n\n\n\n<p>Structure your course into <strong>three blocks<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Block A \u2013 Concepts (Top Ten + high-level OWASP overview)<\/strong><\/li>\n\n\n\n<li><strong>Block B \u2013 Implementation (Proactive Controls, ASVS, secure coding labs)<\/strong><\/li>\n\n\n\n<li><strong>Block C \u2013 Testing &amp; Maturity (WSTG, SAMM, DevSecOps integration)<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Within each block, repeatedly connect:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>\u201cThis vulnerability (Top Ten) \u2192 these controls (ASVS\/Proactive) \u2192 these tests (WSTG) \u2192 these processes (SAMM).\u201d<\/em><\/p>\n<\/blockquote>\n\n\n\n<p>This makes the training cohesive and enterprise-friendly.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\">15. Final Summary<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>OWASP<\/strong> is the <strong>global open standard body<\/strong> for application security.<\/li>\n\n\n\n<li>The <strong>OWASP Top Ten<\/strong> is the <strong>starting point<\/strong>: a curated list of the most critical web app security risks.<\/li>\n\n\n\n<li>It\u2019s built using <strong>real data, expert input, and community review<\/strong>.<\/li>\n\n\n\n<li>For serious AppSec, Top Ten should be combined with:\n<ul class=\"wp-block-list\">\n<li><strong>ASVS<\/strong> (requirements),<\/li>\n\n\n\n<li><strong>Proactive Controls + Cheat Sheets<\/strong> (developer guidance),<\/li>\n\n\n\n<li><strong>WSTG<\/strong> (testing), and<\/li>\n\n\n\n<li><strong>SAMM<\/strong> (maturity and governance).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Proper adoption means:\n<ul class=\"wp-block-list\">\n<li>Training \u2192 Policy \u2192 Secure SDLC \u2192 Automation \u2192 Monitoring \u2192 Maturity.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83c\udf0d The World of OWASP and the OWASP Top Ten A complete introductory tutorial 1. What is OWASP? OWASP stands for Open Worldwide Application Security Project.It\u2019s a non-profit foundation whose&#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[11138],"tags":[],"class_list":["post-54236","post","type-post","status-publish","format-standard","hentry","category-best-tools"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/54236","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=54236"}],"version-history":[{"count":2,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/54236\/revisions"}],"predecessor-version":[{"id":59894,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/54236\/revisions\/59894"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=54236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=54236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=54236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}