Individual skill

cors-csrf-auditor

Reviews Cross-Origin Resource Sharing configs, CSRF protections, SameSite cookies, and origin security.

skills/security/cors-csrf-auditor/SKILL.md

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What was checked

Matches the observed repository HEAD
Yes
Scanner rules are current
Yes
Repository scan complete
No
Skill scan complete
Yes
Observed behavior
Instructions only
Last checked
Nov 5, 2026

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Repository stars (not skill ratings)
27
Repository last updated
Aug 20, 2026
License
MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

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## Purpose

Audit web application endpoints for cross-origin vulnerabilities, overly permissive CORS headers (`Access-Control-Allow-Origin: *` with credentials), missing Anti-CSRF tokens on cookie-based state-changing endpoints, and weak SameSite cookie attributes.

## When to Use

- Exposing new public or authenticated API endpoints.
- Setting up single sign-on (SSO) or cross-subdomain API sharing.
- Reviewing cookie security configurations and pre-flight HTTP headers.

## What to Analyze

1. **CORS Headers**:
   - Inspect `Access-Control-Allow-Origin`, `Access-Control-Allow-Credentials`, and wildcard reflection of `Origin` header.