This lesson shows **realistic and legal examples** of web vulnerabilities. All examples are safe for educational purposes only.
Practice only on **your own labs** or **authorized platforms**.
Case Study 1: SQL Injection (Safe Lab)
Input field: username
Payload: ' OR '1'='1
Effect: Logs in without a password (lab only)
SQL Injection occurs when user input is not properly sanitized. Ethical hackers learn to detect and patch this issue.
Case Study 2: Cross-Site Scripting (XSS)
Input field: comment
Payload: <script>alert('XSS')</script>
Effect: Script runs in browser (lab only)
XSS happens when inputs are rendered without escaping HTML. Ethical hackers report this to secure web applications.
Case Study 3: Broken Authentication
Weak passwords
No multi-factor authentication
Session ID reuse
Users’ accounts can be accessed without proper security. Labs help you learn mitigation strategies safely.
Progress: Lesson 10 of 16