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testing-for-email-header-injection
90 / 100 · Low risk
Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.
By yanacuti1121/Yana-AI (GitHub) · coding · 13 stars · scanned at commit 54d4aa9
Test web application email functionality for SMTP header injection vulnerabilities
Works with any agent that supports SKILL.md skills.
What this skill can do
Sends data to these websites: target.com
The author does not mention this.
Found in 22 places.
Show 17 more
- .claude/skills/testing-for-email-header-injection/SKILL.md, line 84
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 88
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 93
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 97
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 101
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 105
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 112
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 116
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 120
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 124
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 131
curl -X POST http://target.com/webmail/search \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 135
curl -X POST http://target.com/api/send \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 139
curl -X POST http://target.com/api/verify \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 143
curl -X POST http://target.com/contact \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 150
curl -X POST http://target.com/api/send-email \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 155
curl -X POST http://target.com/api/send-email \ - .claude/skills/testing-for-email-header-injection/SKILL.md, line 160
curl -X POST http://target.com/api/send-email \
and 2 more places
Runs commands on your computer
The author does not mention this. Expected for a coding skill.
Found in 5 places.
Show 2 more
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'testing-for-email-header-injection' ] || [ -L ~/.agents/skills/'testing-for-email-header-injection' ]; then echo 'A skill folder named testing-for-email-header-injection already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/yanacuti1121/Yana-AI' "$d" && git -C "$d" checkout --quiet '54d4aa9fa3241319f4d37212bd23826658bf6bed' -- '.claude/skills/testing-for-email-header-injection' && mkdir -p ~/.agents/skills && cp -R "$d"/'.claude/skills/testing-for-email-header-injection' ~/.agents/skills/'testing-for-email-header-injection' && 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/'testing-for-email-header-injection' ~/.claude/skills/'testing-for-email-header-injection' (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 yanacuti1121/Yana-AI shows the score of its lowest-scoring skill.

[](https://zalavijaysinh.github.io/skilltrust/repos/yanacuti1121/Yana-AI/)
Score history
| Date | Version | Score |
|---|
| 2026-11-13 | 54d4aa9 | 90 |
| 2026-11-08 | 4a78f20 | 90 |
Also found in
Identical copies of this skill exist at:
- yanacuti1121/Yana-AI/core/skills/testing-for-email-header-injection