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…/claude-bughunter/hunt-file-upload
home/skills/elementalsouls/claude-bughunter/hunt-file-upload
elementalsouls avatar

hunt-file-upload

byelementalsouls· 56 skills

Installs

85

Stars

3.2k

Forks

493

Category

Security

View on GitHub

TL;DR

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-picture, /attachment, /import endpoint. Test: upload PHP/JSP/ASPX shells, request via direct URL, check response. Validate: actual code execution (whoami output) for RCE; reflected XSS in profile-photo URL. Use when testing file upload features, avatar/attachment endpoints, import/export functions, XML/DOCX/ZIP processors. Real paid examples.

How to install hunt-file-upload?

elementalsouls/claude-bughunter/hunt-file-upload
$npx -y skills add elementalsouls/claude-bughunter --skill hunt-file-upload

Installs into the current project.

›Prefer a prompt? Paste this to your agent

Use this skill

Run `npx skills use "https://github.com/elementalsouls/claude-bughunter" --skill "elementalsouls/claude-bughunter/hunt-file-upload"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.

Use the whole pack

Use the skills in "https://github.com/elementalsouls/claude-bughunter" that are relevant to the current task. Run `npx skills add "https://github.com/elementalsouls/claude-bughunter"` and select the relevant skills, then follow their instructions.

Preview

elementalsouls/claude-bughunterelementalsouls/claude-bughunter

$ npx -y skills add elementalsouls/claude-bughunter --skill hunt-file-upload

▸ installing to .claude/skills…

✓ hunt-file-upload ready

Repoelementalsouls/claude-bughunter
TypeSkills
CategorySecurity
ForDeveloperArchitect
UpdatedJul 2026
License—
First seenJul 27, 2026

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Skill

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