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Application Security
Specialized penetration testing for REST, GraphQL, and gRPC APIs — built around the OWASP API Security Top 10 and the authorization and business-logic flaws scanners miss.
APIs are now the primary attack surface for modern apps — and the most common breaches come from authorization flaws like BOLA/IDOR that automated scanners cannot reliably find. Testing an API well requires understanding intent: which object belongs to which user, which action each role may perform, and where the business logic can be abused.
We test every endpoint, method, and role combination by hand, validating object- and function-level authorization, token handling, input validation, and data exposure. You get a prioritized report mapped to the OWASP API Security Top 10 with reproducible proof and remediation guidance.
Coverage
The #1 API risk: we attempt cross-tenant and cross-user object access on every resource and identifier.
Token forgery, weak JWT validation, session fixation, credential stuffing exposure, and OAuth/OIDC flaws.
Endpoints returning more than the UI needs, verbose errors, and sensitive fields leaking in responses.
Role and privilege escalation across admin and privileged endpoints (BFLA), including hidden methods.
Over-permissive object binding, plus SQL/NoSQL, command, and SSRF injection across parameters.
Introspection abuse, nested-query DoS, batching attacks, and missing rate limits or resource controls.
Engagement
Map every endpoint from OpenAPI/GraphQL schemas, traffic, and discovery — including shadow APIs.
Document roles, scopes, and object ownership to drive authorization test cases.
Per-endpoint, per-role exploitation against the OWASP API Security Top 10.
Prioritized findings with proof-of-concept requests — and a free retest after fixes.
FAQ
API risks are dominated by authorization and business-logic flaws (like BOLA) that depend on understanding object ownership and roles. A dedicated API test exercises every endpoint and role combination directly, rather than only what the UI exposes — coverage a standard web pentest often misses.
Yes. We test REST/JSON, GraphQL (including introspection, batching, and nested-query abuse), and gRPC/Protobuf services, adapting tooling and techniques to each protocol.
Ideally an OpenAPI/Swagger or GraphQL schema, a staging endpoint, and test accounts for each role. We can also work from captured traffic or a Postman collection if no spec exists.
Testing is built around the OWASP API Security Top 10 and OWASP ASVS, and maps cleanly to SOC 2, ISO 27001, and PCI DSS requirements.
Yes. We can run focused API assessments against release candidates and integrate authenticated checks into your pipeline so regressions are caught before they ship.
Get a tailored scope and quote for api security testing.
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