OWASP Testing Guide
Learn the OWASP Top 10 vulnerabilities and how to test for them. This is a foundational concept in quality assurance and test automation that professional developers rely on daily. The explanations below are written to be beginner-friendly while covering the depth and nuance that comes from real-world Software Testing experience. Take your time with each section and practice the examples
50 min•By Priygop Team•Last updated: Feb 2026
OWASP Top 10 2021
- A01: Broken Access Control
- A02: Cryptographic Failures
- A03: Injection
- A04: Insecure Design
- A05: security Misconfiguration
- A06: Vulnerable and Outdated Components
- A07: Identification and Authentication Failures
- A08: Software and Data Integrity Failures
- A09: security Logging and Monitoring Failures
- A10: Server-Side Request Forgery (SSRF)
OWASP Testing Methodology
Example
// OWASP Testing Framework
const owaspTestingFramework = {
"Information Gathering": {
"Objective": "Understand the application and its attack surface",
"Activities": [
"Application fingerprinting",
"Technology stack identification",
"Entry point enumeration",
"Error message analysis"
],
"Tools": ["Nmap", "Nikto", "WhatWeb", "Wappalyzer"]
},
"Configuration and Deployment Management Testing": {
"Objective": "Test for security misconfigurations",
"Activities": [
"Server configuration review",
"Application configuration analysis",
"security headers validation",
"SSL/TLS configuration testing"
],
"Tools": ["SSL Labs", "security Headers", "Nessus"]
},
"Identity Management Testing": {
"Objective": "Test authentication and authorization mechanisms",
"Activities": [
"User enumeration testing",
"Password policy validation",
"Session management testing",
"Multi-factor authentication testing"
],
"Tools": ["Burp Suite", "OWASP ZAP", "Custom scripts"]
}
};
// OWASP Top 10 Testing Examples
const owaspTestingExamples = {
"A01: Broken Access Control": {
"Test Case": "Vertical Privilege Escalation",
"Description": "Test if regular users can access admin functions",
"Steps": [
"1. Login as regular user",
"2. Navigate to admin panel URL",
"3. Attempt to access admin functions",
"4. Verify access is denied"
],
"Expected Result": "Access should be denied with proper error message"
},
"A03: Injection": {
"Test Case": "SQL Injection Testing",
"Description": "Test for SQL injection vulnerabilities",
"Steps": [
"1. Identify input fields",
"2. Inject SQL payloads",
"3. Monitor application responses",
"4. Check for database errors"
],
"Payloads": [
"' OR '1'='1",
"'; DROP TABLE users; --",
"1' UNION SELECT 1,2,3--"
]
},
"A07: Authentication Failures": {
"Test Case": "Brute Force Attack",
"Description": "Test account lockout mechanisms",
"Steps": [
"1. Attempt multiple failed logins",
"2. Monitor account lockout behavior",
"3. Test lockout duration",
"4. Verify account unlock process"
],
"Expected Result": "Account should be locked after failed attempts"
}
};