Intermediate

Browser cross-origin request security concept

CORS Misconfiguration: Simple Mistake, Serious Impact

CORS is a browser security control for controlled cross-origin access. Misconfiguration can expose sensitive data to untrusted origins.

File upload security concept with document and warning icon

File Upload Security: What Can Go Wrong?

File upload features are high-risk because they accept complex user-controlled content and often interact with storage, parsing, and public access paths.

Server-side request flow security diagram

SSRF Explained for Developers and Pentesters

SSRF happens when a web application can be tricked into making server-side requests to unintended locations.