hunt-xss

Map XSS surfaces across web applications for safe testing and remediation.

3.3k|507|Updated May 5, 2026
One-click install
npx skills add https://github.com/elementalsouls/Claude-BugHunter --skill hunt-xss-elementalsouls
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: hunt-xss
Source: https://github.com/elementalsouls/Claude-BugHunter/tree/main/skills/hunt-xss
Command: npx skills add https://github.com/elementalsouls/Claude-BugHunter --skill hunt-xss-elementalsouls

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Web applications often suffer from XSS vulnerabilities that expose session data, enable token theft, or enable privilege escalation. This Skill provides a structured, research-backed methodology to identify, classify, and prioritize XSS surfaces across target systems.

Core Features & Use Cases

  • Comprehensive hunting methodology to map reflection points, sanitizer behaviors, and rendering contexts across platforms.
  • Chains and real-world scenarios showing how XSS can lead to stored, DOM-based, or privilege-escalation outcomes in enterprise apps.
  • Practical guidance for safe testing, responsible disclosure, and remediation planning in bug bounty and red-team engagements.

Quick Start

Begin by selecting a target web application and applying the XSS hunting workflow to locate reflective, stored, and DOM-based vectors, then document concrete remediation steps.

Frequently Asked Questions about hunt-xss

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

FAQPage Schema
How do I find XSS vulnerabilities in a web application?

To find XSS vulnerabilities, map all reflection points across parameters and headers, then validate payloads against rendering contexts. This methodology covers stored, reflected, and DOM-based XSS scenarios to locate exploitable surfaces.

What is the best way to test for DOM-based and reflected XSS safely?

Safely testing for reflected and DOM-based XSS requires applying payload validation and safe exploit minimization. This ensures responsible testing during bug bounty or red-team engagements without causing unintended application damage.

Do I need web security testing experience to hunt for XSS vectors?

Yes, hunting XSS vectors requires experience with web security testing concepts. You need understanding of sanitizer behaviors, rendering contexts, and payload validation to accurately identify and classify vulnerabilities.

How do XSS vulnerabilities lead to privilege escalation in enterprise apps?

XSS vulnerabilities enable privilege escalation by exposing session data and allowing token theft. Chaining XSS vectors in enterprise applications can compromise user sessions and escalate access privileges across target systems.

Can I use this XSS hunting methodology for bug bounty responsible disclosure?

Yes, this XSS hunting methodology provides practical guidance for bug bounty and red-team engagements. It includes documentation practices for responsible disclosure and concrete remediation planning after identifying vulnerabilities.