Business Logic Vulnerability Testing: Finding the Flaws Scanners Cannot See ສຳລັບວິສາຫະກິດລາວ

Business logic vulnerabilities are flaws in the application's intended workflow — not technical errors like injection or XSS, but cases where the application's own logic can be manipulated to achieve unauthorised outcomes. Examples include: bypassing payment in a multi-step checkout, applying discounts multiple times, transferring funds from another user's account by manipulating parameters, escalating privileges through a specific sequence of valid actions, and exploiting race conditions in time-sensitive operations. These vulnerabilities have no signature in any scanner database because they are unique to each application's design. Finding them requires a human tester who understands the intended business process well enough to discover how it can be subverted. In our experience across 500+ engagements, business logic flaws account for the majority of critical findings.