Logic Bypass: How Applications Become Vulnerable Through Workflow Design Flaws

Business logic flaws represent a critical security gap that bypasses traditional code-level protections by exploiting the assumptions applications make about user workflows. Unlike injection attacks or buffer overflows, these vulnerabilities don't require technical exploitation—attackers simply navigate the intended process in an unintended order. This makes them particularly dangerous in payment systems, access controls, and approval chains where unauthorized actions carry significant financial or operational consequences.