What is the OWASP Top 10?

The OWASP Top 10 is a standard awareness document for web application security. It represents a broad consensus about the most critical security risks to web applications, updated periodically by the Open Web Application Security Project. The 2021 edition (current as of 2026) covers: A01 Broken Access Control, A02 Cryptographic Failures, A03 Injection, A04 Insecure Design, A05 Security Misconfiguration, A06 Vulnerable Components, A07 Identification and Authentication Failures, A08 Software and Data Integrity Failures, A09 Security Logging and Monitoring Failures, and A10 Server-Side Request Forgery.

Can automated scanners find all OWASP Top 10 vulnerabilities?

Automated scanners can reliably detect issues in A03 (Injection), A05 (Security Misconfiguration), A06 (Vulnerable Components), and parts of A02 (Cryptographic Failures like TLS misconfigs). Categories like A04 (Insecure Design) and A09 (Logging Failures) require manual review. Modern AI-assisted scanners like SecurityClaw are closing the gap by combining automated scanning with hypothesis-driven testing.

What tools should I use to test for the OWASP Top 10?

A comprehensive OWASP Top 10 testing toolkit includes: OWASP ZAP or Burp Suite for web app scanning, Nuclei for template-based vulnerability detection, testssl.sh or sslyze for TLS auditing, and specialized tools for JWT testing, CORS checking, and header analysis. See our Security Scanner Comparison Hub for detailed tool comparisons.

Key Takeaways

The OWASP Top 10 covers 10 vulnerability categories — each requires different testing techniques and tools
Automated scanners handle injection, misconfiguration, and crypto failures well; access control and design flaws need manual review
This hub links to deep-dive guides for every testable OWASP category with scanner checks, real examples, and fix guidance
SecurityClaw now maps automated skills to every OWASP Top 10 category — see the coverage guides below

OWASP Top 10 Testing Guide: How to Find Every Vulnerability Category in 2026

The OWASP Top 10 is the standard framework for web application security testing. Every penetration test report maps findings to it. Every compliance framework references it. Every security scanner claims to cover it.

But actually testing for each category requires different tools, different techniques, and different levels of expertise. This hub collects every guide we've published on OWASP Top 10 testing — organized by category so you can find exactly what you need.

A01: Broken Access Control

The #1 category since 2021. Covers IDOR, privilege escalation, CORS misconfigs, and path traversal.

CORS Misconfiguration: The Security Header That Breaks Everything When You Get It Wrong

How CORS misconfigurations enable cross-origin data theft, what scanner checks to run, and how to configure CORS headers correctly.

Open Redirect Vulnerabilities: Why Your Login Page Might Be Phishing Your Users

Open redirects enable phishing and token theft. Here's how to test for them and what your scanner should flag.

API Security Testing: The 10 Checks Every API Needs Before Production

BOLA, broken authentication, excessive data exposure — the 10 API-specific checks that map to OWASP A01 and beyond.

A02: Cryptographic Failures

Weak TLS, missing encryption, exposed secrets, and broken crypto implementations.

How to Audit TLS Configuration: What Your Security Scanner Should Check in 2026

TLS misconfigurations remain the #1 cryptographic failure. Protocol versions, cipher suites, certificate chains — what to check and how to fix each issue.

JWT Security: Common Vulnerabilities and How to Test for Them

Algorithm confusion, key leakage, missing expiration — the JWT vulnerabilities that scanners miss and how to test for them manually.

A03: Injection

SQL injection, XSS, command injection, and other injection flaws. Still the most exploited category.

Detecting SQL Injection: What Your Security Scanner Should Check in 2026

Error-based, boolean-based, and time-based SQLi detection. What your scanner should catch and how to fix it.

Detecting Reflected XSS: What Your Security Scanner Should Check in 2026

Reflected XSS remains in the OWASP Top 10 because WAFs don't catch context-dependent payloads. Here's what real detection looks like.

A05: Security Misconfiguration

Default configs, missing headers, verbose errors, unnecessary features enabled.

Security Headers: The Complete Guide to HTTP Response Headers That Protect Your Application

Every security header that matters in 2026 — CSP, HSTS, X-Frame-Options, and more. Configuration examples and testing methods.

6 Security Misconfigurations That Automated Scanners Actually Find in the Wild

Real misconfigurations found by automated scanners in production — exposed admin panels, debug endpoints, default credentials, and more.

A07: Identification and Authentication Failures

Weak passwords, broken session management, credential stuffing vulnerabilities.

Session Security Testing: Cookie Flags, Token Rotation, and What Your Scanner Should Check

Session fixation, missing cookie flags, token predictability — the session management checks that prevent account takeover.

A10: Server-Side Request Forgery (SSRF)

SSRF moved into the Top 10 in 2021 and cloud environments make it more dangerous than ever.

Server-Side Request Forgery: What Your Scanner Should Detect

SSRF in cloud environments can reach metadata endpoints and internal services. Here's what detection looks like and how to prevent it.

Full OWASP Coverage Guides

These guides map automated scanning capabilities across the entire OWASP Top 10.

Related Hubs

Security Scanner Comparison Hub — Tool reviews, pricing, and head-to-head comparisons for every major security scanner.

Bug Bounty Resource Center — Recon workflows, starter kits, and lab setup guides for bug bounty hunters.