Testing for Business Logic Vulnerabilities

When to Use

• During authorized penetration tests when automated scanners have found few technical vulnerabilities
• When assessing e-commerce platforms for pricing, cart, and payment flow manipulations
• For testing multi-step workflows (registration, checkout, approval processes) for bypass opportunities
• When evaluating rate-limited features like vouchers, coupons, referrals, and rewards systems
• During security assessments of financial applications, voting systems, or any application with critical business rules

Prerequisites

• Authorization: Written penetration testing agreement covering business logic testing
• Burp Suite Professional: For intercepting and modifying multi-step request flows
• Application understanding: Thorough knowledge of the application's intended business workflows
• Multiple test accounts: Accounts at different privilege levels and states
• Browser DevTools: For examining client-side validation logic
• Documentation: Business requirements or user stories describing expected behavior