Web Security Testing: OWASP Top 10 Guide for QA Engineers
Security is no longer solely the responsibility of dedicated penetration testers. Learn how QA engineers can identify, reproduce, and report top web security vulnerabilities before production deployment.
1. Introduction to OWASP & Security QA
The Open Web Application Security Project (OWASP) maintains the authoritative standard list of the top 10 most critical web application security risks. Incorporating security verification into standard QA testing cycles ensures data privacy and regulatory compliance.
2. Top Web Vulnerabilities Explained
Broken Access Control
Occurs when applications fail to properly enforce authorization checks, allowing users to access unauthorized data or admin privileges by manipulating URL IDs (IDOR).
Cryptographic Failures
Exposure of sensitive data (passwords, credit cards) due to weak encryption algorithms, missing HTTPS, or plain-text transmission.
Injection (SQLi & Command Injection)
Attacker-supplied untrusted input is executed as database queries or system commands due to missing parameterized input sanitization.
Cross-Site Scripting (XSS)
Injecting malicious JavaScript snippets into input fields (e.g. comment forms) that execute inside other users' web browsers.
3. How QA Engineers Test for Vulnerabilities
- Input Sanitization Checks: Attempt entering boundary strings (
<script>alert(1)</script>,' OR 1=1 --) in input forms and verify proper encoding. - Authorization Verification: Log in as a standard user, copy direct API/page URLs for admin portals, and confirm HTTP 403 Forbidden is returned.
- Security Scanners: Utilize DAST tools like OWASP ZAP or Burp Suite Community Edition during API testing.
Written by QA Academy Team
Empowering engineers with modern security testing skills.