business-logic-vuln

v2026.09.24

Entry P1 category router for business logic testing. Use when workflow abuse, race conditions, pricing flaws, or multi-step state attacks matter more than parser-level input injection.

GitHub
Install command
npx skhub add yaklang/business-logic-vuln
Markdown
SKILL.md

Business Logic Router

This is the routing entry point for business-logic and state-machine issues.

When to Use

  • The target involves coupons, inventory, payment, approvals, quotas, invites, trials, or state transitions
  • The issue is not parser-level; it is about when checks happen and which business conditions are checked
  • You suspect race conditions, workflow bypass, price tampering, negative values, stacked discounts, or multi-step flaws

Skill Map

Recommended Flow

  1. First map key business states and one-time actions
  2. Then check for check-then-act windows, sequence dependencies, or missing cross-step authorization
  3. If the chain depends on APIs, uploads, or object permissions, return to the corresponding router skill to complete the path

Related Categories

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Version
Latest version metadata

Version

v2026.09.24

Published

Sep 24, 2026

Category

Uncategorized

License

MIT

Source path

skills/business-logic-vuln

Default branch

main

Latest commit

6fbf0bc

Tree SHA

8291684