Individual skill
testing-ecommerce-and-payment-logic
Testing business-logic flaws in e-commerce and payment flows including price/product tampering, quantity abuse, voucher and gift-card manipulation, cart and shipping IDOR, payment-method and amount tampering, currency swaps, refund manipulation, and out-of-stock ordering.
internal/tools/skills/data/web-application-security/testing-ecommerce-and-payment-logic/SKILL.md
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- Last checked
- Nov 9, 2026
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- Repository last updated
- Nov 8, 2026
- License
- Apache-2.0
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- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- penetration-testing Declared skill tag
- business-logic Declared skill tag
- ecommerce Declared skill tag
- payment Declared skill tag
- price-tampering Declared skill tag
- voucher-abuse Declared skill tag
- web-security Declared skill tag
- security Derived category
- testing Derived category
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# Testing E-commerce and Payment Logic
## When to Use
- During authorized penetration tests of online shops, marketplaces, booking systems, and checkout/payment flows
- When the application calculates price, totals, discounts, shipping, tax, or stock and trusts client-supplied values
- For validating that authorization and server-side recomputation protect carts, orders, vouchers, and payments
- When testing voucher/gift-card systems, refunds, cancellations, and multi-step payment hand-offs to gateways
- During bug bounty programs targeting business-logic and broken-access-control issues with direct financial impact
## Prerequisites
- **Authorization**: Written penetration testing agreement; payment testing must use sandbox/test gateways and test cards only
- **Test payment credentials**: Gateway sandbox keys, test PANs (e.g. 4111 1111 1111 1111), and confirmation that no real charges occur