graphql-and-hidden-parameters

To discover hidden GraphQL fields, you probe for undocumented parameters and authorization gaps using error-based discovery, type probing, and schema introspection techniques. This process exposes admin-only or internal fields implied by schema errors or permissive schemas.

Yes, you can extract schema details when introspection is partially restricted by applying field and error-based enumeration techniques. This allows you to identify types, fields, and relationships without standard introspection queries.

You test for IDOR vulnerabilities using GraphQL batching by sending batching-style queries to stress authorization logic and IDOR boundaries. This reveals rate or behavior differences tied to privilege outcomes.

Error-based discovery in GraphQL security testing is a technique to uncover undocumented fields and authorization gaps by analyzing schema errors. It helps find admin-only or internal fields implied by permissive schemas or richer request bodies than the UI suggests.

You validate the impact of hidden GraphQL fields by confirming their privilege outcomes with IDOR-style queries. This involves testing mutation and query abuse scenarios to verify authorization gaps uncovered during schema discovery.

No special tools are required beyond the testing patterns themselves. Detecting admin-only fields via schema abuse involves applying concrete test patterns for introspection, type probing, and hidden field confirmation directly against the API.