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API Security Testing

Comprehensive security testing for REST and GraphQL APIs. We uncover authentication bypasses, broken access controls, injection flaws, and data exposure vulnerabilities in your API layer.

What We Test

Full-spectrum API security testing aligned with OWASP API Security Top 10.

Authentication Bypass

JWT algorithm confusion, token forgery, OAuth flow manipulation, and API key leakage testing.

IDOR & BOLA

Broken object-level authorization testing across all endpoints and HTTP methods.

Rate Limiting & Abuse

Rate limit bypass, resource exhaustion, and denial-of-service vector identification.

Input Validation

SQL injection, command injection, and NoSQL injection across all API parameters and payloads.

CORS & Mass Assignment

Cross-origin misconfigurations, mass assignment vulnerabilities, and excessive data exposure.

GraphQL Security

Introspection exposure, query depth attacks, batching abuse, and field-level authorization testing.

Our Methodology

1

API Discovery

Enumerate endpoints via OpenAPI/Swagger docs, traffic analysis, and automated crawling.

2

Auth Testing

Test JWT handling, OAuth flows, API key scoping, and session management across all roles.

3

Fuzzing & Injection

Automated fuzzing of all parameters with injection payloads and malformed input data.

4

Reporting

Detailed findings with API-specific remediation, including request/response samples.

Tools We Use

Purpose-built API security tools for maximum coverage and accuracy.

Nuclei SQLMap HTTPX Header Scanner Commix

Sample Findings

Common API vulnerabilities discovered during our assessments.

Critical

JWT None Algorithm

API accepts JWTs with "none" algorithm, allowing attackers to forge tokens and impersonate any user.

High

GraphQL Introspection

Full schema introspection enabled in production, exposing all queries, mutations, and internal data types.

High

Rate Limit Bypass

Rate limiting bypassed via X-Forwarded-For header manipulation, enabling brute-force attacks on auth endpoints.

Medium

CORS Wildcard

Access-Control-Allow-Origin set to wildcard with credentials, enabling cross-origin data theft from any domain.

Compliance Mapping

API security findings mapped to regulatory and industry frameworks.

PCI DSS

Req 6.5 โ€” Secure API development and vulnerability testing for payment data flows.

SOC 2

CC6.1 โ€” Logical access controls and API authentication mechanisms.

HIPAA

ยง164.312 โ€” Access controls and transmission security for health data APIs.

GDPR

Art. 25 โ€” Data protection by design and by default in API endpoints.

ISO 27001

A.14.2 โ€” Security in development and support processes for APIs.

OWASP API Top 10

Full coverage of all ten API-specific vulnerability categories.

Ready to Secure Your APIs?

Get a comprehensive security assessment of your REST and GraphQL APIs. Uncover vulnerabilities in authentication, authorization, and data handling.