00 — Overview
Business Logic Flaws
The application works exactly as coded — but the code doesn't match how the business should work. Negative prices, skipping steps, discount stacking.
Intermediate·40 min·7 tasks
// By the end of this module
→Understand what makes a vulnerability a business logic flaw
→Identify price manipulation, limit bypass, and workflow skip vulnerabilities
→Test negative values, race conditions, and parameter tampering
→Think like an attacker to find logic bugs automated scanners miss