idor-broken-object-authorization

To test for IDOR and broken object authorization, this Skill applies a systematic methodology to verify access controls on object identifiers across APIs, UI paths, and nested resources, documenting evidence for reproducibility.

Finding BOLA and BFLA vulnerabilities in multi-tenant apps involves checking direct references, nested resources, bulk actions, and indirect authorization chains to ensure strict access control validation across authenticated contexts.

To exploit IDOR vulnerabilities for bug bounty evidence, you identify object IDs across endpoints, test unauthorized access, and document the findings using a step-by-step playbook that ensures reproducible risk assessment and actionable mitigations.

Yes, you can use this methodology for security testing in single-tenant web applications, as the playbook covers both single-tenant and multi-tenant contexts to validate access controls comprehensively.

Recommended mitigations for broken object authorization weaknesses include implementing strict access control validation on object identifiers and applying guardrails to protect direct references, nested resources, and bulk actions.