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pentest-client-advanced

Advanced client-side attacks — CORS misconfiguration, WebSocket security, clickjacking, postMessage abuse, CSS injection, and browser storage vulnerabilities.

skills/pentest-client-advanced/SKILL.md

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# Pentest Client Advanced

## Purpose
Test advanced client-side attack surfaces beyond XSS. Six WSTG-CLNT items remain unchecked in Shannon's pipeline — these are distinct attack classes requiring different methodology than taint analysis.

## Prerequisites

### Authorization Requirements
- **Written authorization** with client-side testing scope
- **Test domains** for hosting PoC HTML pages (attacker-controlled origin)
- **Browser testing environment** with DevTools access
- **Target user simulation** — ability to test cross-origin interactions

### Environment Setup