Modern applications rely on hundreds of microservice APIs. In fast-paced DevOps environments, "API Drift"—the divergence between documented OpenAPI specifications and actual running endpoints—creates a massive hidden attack surface.
Shadow APIs (deprecated API versions left online after sprint releases) and Zombie Endpoints (staging APIs pointing to production databases without authentication) are primary targets for automated API scrapers and malicious actors.
Top API Vulnerabilities Found During VAPT Audits
- Broken Object Level Authorization (BOLA / IDOR): Changing an `account_id` parameter in a REST payload allows unauthorized users to read other accounts' data.
- Broken Function Level Authorization (BFLA): Accessing admin-only endpoint methods by simply swapping HTTP `GET` to `POST` or `PUT`.
- Uncapped Batch Queries in GraphQL: Exploiting GraphQL field batching to execute thousands of password guessing attempts in a single HTTP POST request.
Securing Your API Architecture with SA Infotech
Our security engineers perform deep-dive manual API penetration testing across REST, GraphQL, and SOAP interfaces to uncover logical authorization flaws that automated scanners miss. Contact us to schedule an API security audit.