file-upload-security

Name: file-upload-security
Rating: 5 (8 reviews)
Author: GoldenWing-360

Accept user file uploads without introducing remote code execution, stored XSS, or polyglot attacks. Covers magic-byte validation, strict type allowlists, image re-encoding to defang embedded payloads, EXIF stripping, virus scanning, path-safe storage keys, and serving via a separate origin with Content-Disposition. Invoke when adding upload to a new endpoint or migrating from local-disk storage t

8stars

Updated last month

View on GitHub ↗License: MIT

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#llm #mcp #ai #api #word

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File Upload Security

User-uploaded files are one of the highest-leverage attack surfaces. A single endpoint that accepts * MIME types and writes to a server-served path is a path to RCE, XSS, SSRF, stored-XSS in PDFs, and a half-dozen other failure modes. The defaults of every web framework do less than they should — this skill is what to add on top.

Generic, not CMS-specific. For Payload-specific tuning see payload-cms-security. For WordPress see

[Description truncada. Veja o README completo no GitHub.]

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