Advanced manual API security testing designed to identify real-world vulnerabilities before attackers can exploit your APIs and sensitive business data.
APIs are an essential part of modern applications and businesses. They connect mobile apps, web platforms, third-party services, and internal systems to allow smooth data exchange and communication.
However, APIs are also one of the most targeted attack surfaces in modern cybersecurity. If APIs are not properly secured and regularly tested, attackers may exploit vulnerable endpoints to access sensitive data, abuse application functionality, bypass authorization controls, or even compromise internal systems.
Many organizations rely only on automated API security scanners, but these tools often miss critical vulnerabilities such as business logic flaws, authorization bypasses, and chained attack paths.
BugxSolutions provides detailed manual API penetration testing for REST, GraphQL, and SOAP APIs. Our testing identifies real-world security weaknesses, validates authentication and authorization controls, and provides practical remediation guidance to help organizations secure their API infrastructure.
API penetration testing is a security assessment designed to identify vulnerabilities within APIs and verify that endpoints are properly protected against real-world attacks.
The testing process evaluates:
Our testers simulate real attacker techniques to determine whether APIs can be abused to access unauthorized data or functionality.
Unlike standard web application testing, API penetration testing focuses specifically on API protocols, request handling, tokens, data processing, and endpoint behavior that make APIs uniquely vulnerable.
Our API penetration testing includes coverage of major OWASP API Security Top 10 risks, including:
In addition to the OWASP API Top 10, we also identify business logic flaws, privilege escalation paths, insecure workflows, token-related weaknesses, and API-specific attack scenarios that automated tools commonly miss.
We begin by identifying all API endpoints, authentication methods, and data exchange flows within the environment.
This includes:
We also perform active endpoint discovery to ensure full API coverage.
We test API authentication and access control mechanisms for weaknesses such as:
Our goal is to verify that users can only access the resources and actions intended for their permission level.
Every parameter and input field is tested for vulnerabilities including:
We verify that all user input is properly validated and securely handled.
Our analysts manually test API workflows to identify logic flaws that attackers could abuse.
This includes testing for:
These types of vulnerabilities are often unique to each application and cannot be reliably identified by automated scanners.
We assess whether APIs are protected against abuse scenarios such as:
We validate whether proper rate limiting and request controls are implemented.
After testing is completed, BugxSolutions provides a detailed report containing:
Our team also supports your developers during the remediation process to help resolve vulnerabilities effectively.
Our API penetration testing follows industry-recognized security frameworks and standards, including:
We adapt our testing approach based on your API architecture, authentication model, and business risk profile.