Business Logic Errors · passage 8 of 11
Text · Business Logic Errors/README.md
For testing systems you own or are authorised to test, and for defending them. Nothing here is run by this page.
Open this passage on GitHub* Purchase a product, ask for a refund, and see if the product remains accessible. * Look for opportunities for currency arbitrage. * Submit multiple cancellation requests for a subscription to check the possibility of multiple refunds.
Source: Business Logic Errors/README.md in PayloadsAllTheThings. From PayloadsAllTheThings by Swissky and contributors. MIT License, Copyright (c) 2019 Swissky.
Every one of the 11 is a mark on the map. Named now: 1 to 11, reading order first.
Zoom in on the map and the dots under the middle of it are named where they are.
Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-15 · CISA KEV checked 2026-11-15. Source: PayloadsAllTheThings by Swissky and contributors, MIT License. For authorised testing only.