idor-methodology

To test for IDOR vulnerabilities in API endpoints, you systematically enumerate identifiers across URL paths, query parameters, and request bodies, then verify access controls by substituting identifiers of other users to check for unauthorized data access.

Horizontal privilege escalation in IDOR testing involves accessing data of peer users by manipulating identifiers, while vertical privilege escalation targets higher-privilege accounts or administrative resources by modifying object references without proper authorization checks.

Detecting insecure direct object references in GraphQL variables and request bodies involves intercepting API requests, analyzing indirect identifiers in the payload, and replaying requests with modified object references to validate missing authorization checks.

Common IDOR bypass techniques include parameter pollution, encoding variations, and HTTP method switching, which manipulate how the server parses object references to circumvent inconsistent authorization checks across different request formats.

Yes, the methodology provides specific guidance for validating write and modify operations, ensuring that IDOR exploits affecting data creation or alteration are tested safely with evidence collection and reproducible PoCs.

Create reproducible PoCs and reports for IDOR findings by following structured evidence-driven testing, capturing raw API requests and responses, and integrating with eval tooling to document the exploit chain and access control failure.