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hunt-file-upload

97 / 100 · Low risk

Fine to try.

By adriannoes/awesome-agentic-ai (GitHub) · coding · 99 stars · scanned at commit e797ed5

Hunt file upload bugs — RCE via webshell, XSS via SVG/HTML, SSRF via XXE in DOCX, path traversal via filename. Bypass tables (10 techniques): double extension (shell.php.jpg if server checks last ext only), magic bytes spoofing (PNG header on PHP), null byte (shell.php\0.jpg), case (PHP, .Php, .pHP), .htaccess upload to enable execution, SVG with <script>, HTML/SVG XSS, DOCX with embedded XXE, ZIP slip (../../../etc/passwd in archive), polyglot files. Detection: any /upload, /avatar, /profile-p…

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/'hunt-file-upload' ] || [ -L ~/.agents/skills/'hunt-file-upload' ]; then echo 'A skill folder named hunt-file-upload already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/adriannoes/awesome-agentic-ai' "$d" && git -C "$d" checkout --quiet 'e797ed58cfe6dd6453fe7632f89d7226d203f6f6' -- 'cursor-claude-codex/skills/bug-hunter/skills/hunt-file-upload' && mkdir -p ~/.agents/skills && cp -R "$d"/'cursor-claude-codex/skills/bug-hunter/skills/hunt-file-upload' ~/.agents/skills/'hunt-file-upload' && 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/'hunt-file-upload' ~/.claude/skills/'hunt-file-upload' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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