Business Logic Vulnerability Labs

Logic flaws don't fit the OWASP Top 10 neatly because they're application-specific — but they're among the highest-bounty bugs in real-world programs. These labs give you hands-on experience with race conditions and other logic-class vulnerabilities.

Race conditions and logic flaws often slip past automated scanners because they require understanding the business intent of an endpoint. These labs walk you through the actual exploitation patterns — from coupon double-spend via concurrent requests to other multi-step logic abuses.