graphql-and-hidden-parameters

To find hidden parameters in a GraphQL API, probe schemas using introspection to detect undocumented or admin-only fields and map exposed types without altering production data.

GraphQL introspection is the ability to query the schema and discover types and fields. It exposes security gaps by revealing undocumented or admin-only fields that affect access control.

Yes, you can assess authorization gaps in REST-backed GraphQL gateways by probing batching endpoints and field access to detect misconfigured checks that bypass authorization and reveal sensitive data.

Audit GraphQL schemas for undocumented admin fields by querying the __schema and __type endpoints to enumerate publicly introspectable types and identify hidden parameters affecting access control.

Yes, GraphQL security testing works without altering production data by probing schemas, detecting hidden or admin-only fields, and assessing authorization gaps through read-only introspection operations.

The best way to map GraphQL attack surfaces during a pentest is to run a reconnaissance pass that enumerates exposed schemas, identifies introspection capabilities, and uncovers hidden fields for privilege escalation.