attack-surface-xss

Map XSS attack surface by analyzing security headers, frameworks, and DOM patterns.

8|1|Updated Jan 19, 2026
One-click install
npx skills add https://github.com/igbuend/grimbard --skill attack-surface-xss
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: attack-surface-xss
Source: https://github.com/igbuend/grimbard/tree/main/skills/attack-surface-xss
Command: npx skills add https://github.com/igbuend/grimbard --skill attack-surface-xss

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps security professionals understand the potential for Cross-Site Scripting (XSS) vulnerabilities by analyzing a target URL's configuration and code without actively exploiting it.

Core Features & Use Cases

  • Reconnaissance: Identifies security headers, client-side frameworks, JavaScript libraries, and DOM patterns that influence XSS exploitability.
  • Attack Surface Mapping: Provides a prioritized list of where to focus XSS testing efforts.
  • Use Case: Before conducting an XSS penetration test, use this Skill to quickly assess the target's defenses and identify the most promising injection points.

Quick Start

Use the attack-surface-xss skill to analyze the XSS attack surface of https://example.com.

Frequently Asked Questions about attack-surface-xss

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

FAQPage Schema
How do I map the XSS attack surface of a target URL before penetration testing?

This passive reconnaissance identifies security headers, client-side frameworks, JavaScript libraries, and DOM patterns to map the XSS attack surface of a target URL. It helps ethical hackers prepare for XSS testing by assessing defenses without active payload injection.

What is passive reconnaissance for web security and how does it find XSS vulnerabilities?

Passive reconnaissance analyzes a target's security headers, client-side frameworks, and DOM patterns to identify potential XSS vulnerabilities. It maps the attack surface by examining existing configurations without actively exploiting or injecting payloads into the target.

Can I analyze client-side JavaScript frameworks for DOM-based XSS using passive reconnaissance?

Yes, passive reconnaissance examines client-side JavaScript frameworks and DOM patterns to identify potential DOM-based XSS. By analyzing how libraries render dynamic content and handle inputs, it maps potential Cross-Site Scripting injection points without active exploitation.

Does this XSS reconnaissance method actively inject payloads into the target?

No, this XSS reconnaissance method does not actively inject payloads into the target. It performs passive analysis of security headers, JavaScript libraries, and DOM patterns to map the attack surface, maintaining ethical hacking standards during preparation.

What are the limitations of passive XSS attack surface mapping?

Passive XSS attack surface mapping cannot confirm actual exploitability because it avoids active payload injection. It identifies potential injection points and missing security headers, but validating true vulnerabilities requires subsequent active penetration testing.