hunt-idor

To test for IDOR vulnerabilities in multi-tenant applications, you substitute IDs in REST and GraphQL API calls to detect unauthorized cross-tenant access. This methodology validates object ownership checks and query tenant scoping to prevent data leakage across user, order, and messaging scopes.

An IDOR vulnerability allows attackers to access or manipulate another user's data by substituting IDs in API calls, directly undermining multi-tenant isolation. It occurs when applications fail to enforce robust object ownership checks and tenant scoping in queries.

Yes, you can use this methodology to find IDOR in both REST and GraphQL endpoints. It provides specific patterns and payloads designed to reveal unauthorized access across user, order, messaging, and admin-resource scopes within multi-tenant web applications.

The best way to chain IDOR findings into impactful bug bounty reports is to apply step-by-step hunting patterns that connect unauthorized access across users, orders, and teams. Real-world chains help reproduce cross-tenant data leakage and demonstrate impact.

To detect cross-tenant access controls in GraphQL queries, you apply specific detection techniques and payloads that substitute object IDs to test for robust validation. This reveals whether tenant scoping is properly enforced to prevent unauthorized data access.