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html-injection-testing

92 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By zebbern/claude-code-guide (GitHub) · coding · 4,704 stars · scanned at commit 84cb1c6

This skill should be used when the user asks to "test for HTML injection", "inject HTML into web pages", "perform HTML injection attacks", "deface web applications", or "test content injection vulnerabilities". It provides comprehensive HTML injection attack techniques and testing methodologies.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'html-injection-testing' ] || [ -L ~/.agents/skills/'html-injection-testing' ]; then echo 'A skill folder named html-injection-testing already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/zebbern/claude-code-guide' "$d" && git -C "$d" checkout --quiet '84cb1c68461189c5a285948f95b5de20813c029b' -- 'skills/html-injection-testing' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/html-injection-testing' ~/.agents/skills/'html-injection-testing' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'html-injection-testing' ~/.claude/skills/'html-injection-testing' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

Badge for your README

The badge for zebbern/claude-code-guide shows the score of its lowest-scoring skill.

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Score history

Also found in

Identical copies of this skill exist at:

• aicodedecode/awesome-muse-skills/skills-imported/html-injection-testing
• davila7/claude-code-templates/cli-tool/components/skills/security/html-injection-testing