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Simulations/CORS Exploit

CORS Exploit

Intermediate

Misconfigured CORS headers can allow attackers to steal user data from any origin. Identify the flaw, exploit it, and fix the configuration.

Progress:
1
Spot the Misconfiguration
2
Craft the Exploit
3
Fix the Config
api.victim.com — Response Headers
HTTP/1.1 200 OK Access-Control-Allow-Origin: * Access-Control-Allow-Credentials: true Access-Control-Allow-Methods: GET, POST, PUT Content-Type: application/json
// Response body { "name": "Alice Johnson", "email": "alice@company.com", "ssn": "123-45-6789", "role": "admin" }
Challenge 1 — Identify the misconfiguration

Challenges

1
Spot the Misconfiguration
Identify why the CORS headers are dangerous when combined.
▼ hints
2
Craft the Exploit
Select the correct attack code that exploits the CORS misconfiguration.
▼ hints
3
Fix the Config
Toggle the correct CORS settings to secure the API.
▼ hints
How to fix CORS misconfiguration
Proper origin validation eliminates cross-origin data theft
▼

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