medium.com/tag/penetration-testing· Oct 11, 2026· by Omar Tamer

How I Found an Unauthenticated GraphQL API Leaking User Data

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GraphQL shifts a lot of power to the client. One endpoint, one POST request, and the caller decides exactly which objects and fields come… Continue reading on Medium »
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.
#graphql#security#penetration-testing#cybersecurity#bug-bounty