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Cross Site Scripting And HTML Injection Testing

This is a security testing skill for finding XSS and HTML injection vulnerabilities in web applications. It covers all three major attack vectors: stored, reflected, and DOM-based XSS. You'll need Burp Suite or browser dev tools, test accounts, and a solid understanding of JavaScript execution contexts and DOM manipulation. The skill walks you through systematic injection testing, session hijacking demonstrations, and validating whether input sanitization actually works. Originally from sickn33/antigravity-awesome-skills, now maintained in davila7's template collection. Useful if you're doing penetration testing or security assessments, though the Snyk audit failed while other security checks passed, so review the code before running it against production systems.

GitHub stars
30.2K
last updated
Aug 21, 2026

Install

$ npx -y skills add davila7/claude-code-templates --skill 'Cross-Site Scripting and HTML Injection Testing' --agent claude-code

Installs into .claude/skills of the current project.

Files

This is a security testing skill for finding XSS and HTML injection vulnerabilities in web applications. It covers all three major attack vectors: stored, reflected, and DOM-based XSS. You'll need Burp Suite or browser dev tools, test accounts, and a solid understanding of JavaScript execution contexts and DOM manipulation. The skill walks you through systematic injection testing, session hijacking demonstrations, and validating whether input sanitization actually works. Originally from sickn33/antigravity-awesome-skills, now maintained in davila7's template collection. Useful if you're doing penetration testing or security assessments, though the Snyk audit failed while other security checks passed, so review the code before running it against production systems.

Browse the repository on GitHub

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Details

Repository
github.com/davila7/claude-code-templates
Categories
Frontend Development, Testing & QA, Security
First seen
Jun 3, 2026

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