API Vulnerability Assessment and Penetration Testing
Using OWASP API Security Top 10, we identify and assess REST API and GraphQL vulnerabilities including BOLA/IDOR, broken authentication, data exposure, and rate limiting flaws.
API Vulnerability Assessment and Penetration Testing Services
Choose the service that fits your API type
Complete OWASP API Security Top 10 (2023) Coverage
Our tests cover all ten OWASP top API security risks
Broken Object Level Authorization
Broken Authentication
Broken Object Property Level Authorization
Unrestricted Resource Consumption
Broken Function Level Authorization
Unrestricted Access to Sensitive Business Flows
Server Side Request Forgery
Security Misconfiguration
Improper Inventory Management
Unsafe Consumption of APIs
Why API Security Matters?
APIs are the heart of modern applications and provide direct access to sensitive data
Modern applications rely heavily on APIs. Mobile apps, SPAs, microservices, and IoT devices all communicate through APIs, making them critical attack targets.
APIs provide direct access to backend data and business logic. A single vulnerability can expose millions of records or enable unauthorized actions.
Broken Object Level Authorization (BOLA) is the #1 API risk. Attackers can access other users' data by manipulating object IDs in API requests.
APIs often expose undocumented endpoints, debug features, or legacy versions. These hidden endpoints are frequently targeted by attackers.
API Types Coverage
Specialized testing for REST API and GraphQL
- Authentication & Authorization
- BOLA/IDOR Testing
- Rate Limiting & Throttling
- Input Validation
- Mass Assignment
- Sensitive Data Exposure
- HTTP Method Tampering
- CORS Configuration
- Introspection Security
- Query Depth Limiting
- Query Complexity Analysis
- Field-level Authorization
- Batching Attacks
- Alias-based DoS
- Query Injection
- Schema Exposure
Specialized API Methodologies
We leverage globally recognized frameworks for API security assessment
Top 10 API Security Risks (2023) - Industry Standard
For API risk identificationApplication Security Verification Standard - API Section
For security verificationWeb Security Testing Guide - API Testing Chapter
For comprehensive API testingSecurity review of OpenAPI/Swagger specifications
For API documentation reviewWhat Do We Test?
Comprehensive coverage of all API security aspects based on OWASP API Security Top 10
- JWT Security
- OAuth 2.0 Flows
- API Keys
- Token Expiration
- Refresh Token Security
- BOLA/IDOR
- Function Level Access
- Property Level Access
- Role-based Access
- Privilege Escalation
- SQL/NoSQL Injection
- Command Injection
- JSON Injection
- XXE Attacks
- Parameter Pollution
- Brute Force Protection
- DoS Resistance
- Resource Quotas
- Concurrent Request Limits
- Throttling Bypass
- Excessive Data Exposure
- Error Message Leakage
- Debug Information
- Stack Traces
- Sensitive Headers
- CORS Policy
- TLS Configuration
- HTTP Headers
- API Versioning
- Documentation Security
Our Process
Our structured approach to API security assessment
We map all API endpoints using documentation, traffic analysis, and fuzzing. We identify hidden endpoints, deprecated versions, and undocumented features.
Using specialized API security tools, we perform automated testing for common vulnerabilities, rate limiting, and authentication issues.
Expert manual testing for business logic flaws, BOLA/IDOR, authorization bypass, and complex attack chains that automated tools miss.
Detailed report with CVSS scores, API-specific remediation, Postman/Swagger collections, and free retesting after fixes.
Project Deliverables
Comprehensive and actionable reports for technical and management teams
Executive Summary
High-level overview for management
Technical Report
Detailed findings with CVSS scores
API Collection
Postman/Swagger collections for retesting
Free Retesting
Verify fixes at no extra cost