web-xss

Identify and analyze reflected, stored, and DOM-based XSS vulnerabilities in web applications.

60|14|Updated Apr 27, 2026
One-click install
npx skills add https://github.com/brucesongs/kali-claw --skill web-xss
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: web-xss
Source: https://github.com/brucesongs/kali-claw/tree/main/skills/web-xss
Command: npx skills add https://github.com/brucesongs/kali-claw --skill web-xss

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

XSS vulnerabilities undermine user safety and data integrity by allowing attackers to inject and execute malicious scripts in trusted contexts. This skill provides structured guidance to identify, analyze, and understand reflected, stored, and DOM-based XSS across modern web applications and lab environments.

Core Features & Use Cases

  • Comprehensive XSS coverage including reflected, stored, and DOM-based variants, with mutation and CSP considerations
  • Practical payload catalogs and testing methodologies to evaluate filter bypass and defense effectiveness
  • Step-by-step lab-style workflows for bug bounty, red-team, or defense-oriented testing in both experimental and real-world apps

Quick Start

Load a sample vulnerable page and apply the payloads to observe XSS behavior.

Frequently Asked Questions about web-xss

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I test for DOM-based XSS vulnerabilities in modern web applications?

Testing for DOM XSS involves analyzing client-side JavaScript execution flows to identify unsafe sinks and source injections. This skill provides structured methodologies and payload catalogs to evaluate DOM XSS behavior across experimental and real-world web contexts.

What is the best way to bypass WAF and CSP protections during penetration testing?

Bypassing WAF and CSP protections requires applying mutation payloads and evaluating filter effectiveness against specific defense configurations. This skill provides practical payload catalogs and testing methodologies to assess filter bypass capabilities in modern web contexts.

How do I identify and analyze reflected and stored cross-site scripting vulnerabilities?

Identifying reflected and stored XSS requires injecting payload catalogs into input vectors and observing script execution in trusted contexts. This skill guides security testers through step-by-step lab-style workflows to assess both reflected and stored XSS variants effectively.

Can I use this XSS testing methodology for bug bounty and red-team engagements?

Yes, this XSS testing methodology is designed for bug bounty, red-team, and defense-oriented testing. It provides step-by-step lab-style workflows and practical payload catalogs to guide effective vulnerability evaluation and remediation across real-world applications.

What payloads should I use to evaluate cross-site scripting filter effectiveness?

Evaluating XSS filter effectiveness requires applying diverse payload catalogs that target mutation behavior and CSP considerations. This skill provides comprehensive payload collections and testing methodologies to observe XSS behavior and guide remediation efforts.