HACKR.GG
00 — Overview

CORS Misconfiguration

Learn how misconfigured Cross-Origin Resource Sharing headers let any website silently steal authenticated user data from APIs.

Intermediate·35 min·5 tasks
// By the end of this module
Understand the CORS mechanism and when it is enforced
Identify misconfigured Access-Control-Allow-Origin headers
Exploit CORS to steal authenticated API responses from another origin
Recognise the difference between CORS misconfiguration and CSRF