API Pentesting
At EZ Solutions, our API penetration testing is built for the way modern applications actually work. APIs power mobile apps, single-page front-ends, partner integrations, and microservices — and they are now one of the most targeted attack surfaces. Every assessment is led by a Certified Ethical Hacker (CEH) and combines deep manual testing with proven offensive techniques to uncover the flaws automated scanners miss.
OWASP API Security Top 10 Coverage
We systematically test against the latest OWASP API Security Top 10 — including broken object level authorization (BOLA), broken authentication, excessive data exposure, and security misconfigurations — to ensure your APIs are hardened against the most impactful real-world attacks.
REST, GraphQL & Modern Protocols
We test REST, GraphQL, gRPC, and WebSocket endpoints with techniques tailored to each protocol — including GraphQL introspection abuse, query batching, and depth/complexity attacks — so every layer of your API stack is covered.
Authentication & Token Security
We assess API keys, OAuth 2.0 flows, JWTs, and session tokens for weaknesses such as algorithm confusion, weak signing keys, token replay, and improper expiration — confirming attackers cannot impersonate users or services.
Authorization & BOLA Testing
Broken object level authorization is the #1 API risk. We manually probe every endpoint for horizontal and vertical privilege escalation, IDOR, and tenant isolation issues to ensure each request is properly scoped to the calling user.
Input Validation & Injection
Our testers exercise every parameter, header, and payload to identify SQL injection, NoSQL injection, command injection, SSRF, and mass assignment vulnerabilities using both automated fuzzing and hand-crafted payloads.
Rate Limiting & Resource Abuse
We validate rate limits, quotas, and anti-automation controls across authentication, search, and expensive endpoints to ensure your APIs are resilient against credential stuffing, scraping, and denial-of-service abuse.
Business Logic Abuse
Automated tools cannot understand how your API is meant to be used. We map workflows and abuse business logic — payment flows, multi-step processes, and state transitions — to uncover flaws unique to your application.
CVE Validation & Real-World Impact
Where applicable, we validate findings against known CVEs and chain vulnerabilities into realistic attack scenarios — helping your team understand not just what is vulnerable, but how an attacker would actually exploit it and what the business impact would be.
Clear, Actionable Reporting
You receive a detailed report with prioritized findings, reproduction steps, evidence, and concrete remediation guidance — written so that both your engineers and your leadership team can act on it quickly.
Request an API Pentest
Ready to harden your APIs? Get in touch and our team will scope an assessment tailored to your stack and risk profile.