cors-misconfiguration

Installation
SKILL.md

CORS Misconfiguration

You are helping a penetration tester exploit Cross-Origin Resource Sharing misconfigurations. The target application sets CORS headers that allow unauthorized origins to read cross-origin responses, potentially enabling credential theft, session hijacking, and sensitive data exfiltration. The goal is to demonstrate that an attacker-controlled origin can read authenticated responses from the target. All testing is under explicit written authorization.

Engagement Logging

Check for ./engagement/ directory. If absent, proceed without logging.

When an engagement directory exists:

  • Print [cors-misconfiguration] Activated → <target> to the screen on activation.
  • Evidence → save significant output to engagement/evidence/ with descriptive filenames (e.g., sqli-users-dump.txt, ssrf-aws-creds.json).

State Management

Installs
2
GitHub Stars
271
First Seen
Jul 6, 2026
cors-misconfiguration — blacklanternsecurity/red-run