security-review-owasp-authorization

To review code for authorization bypasses, analyze routes, middleware, and policy enforcement to identify missing server-side access checks and privilege escalation vulnerabilities. This process exposes object-level access issues and cross-tenant data exposure before release.

Broken object-level authorization, or IDOR, occurs when object-level access controls are missing, allowing unauthorized data access. Catch IDOR vulnerabilities by reviewing storage-backed resources and API endpoints to confirm server-side access checks are enforced per object.

Test multi-tenant applications for cross-tenant data exposure by reviewing tenant isolation boundaries and policy enforcement code. This identifies deny-by-default mistakes and confirms that route guards and storage protection prevent unauthorized access across tenants.

Yes, you can review API workflows and admin route guards for privilege escalation by analyzing middleware and service code. It evaluates access control models to ensure server-side policy enforcement prevents unauthorized privilege elevation.

The best way to document authorization review findings is to provide evidence-based results with severity ranking. This includes identifying review gaps and confirming access-control recommendations to prioritize remediation for server-side enforcement weaknesses.