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Windsurf Security Guide
Q&AWindsurf

Does Windsurf handle file uploads securely?

Windsurf may generate file upload handlers that lack essential security controls like file type validation, size limits, filename sanitization, and storage path restrictions. AI-generated upload code frequently accepts any file type and stores uploads in publicly accessible directories without renaming files, creating path traversal and remote code execution risks. The generated code may not check for malicious content disguised with manipulated file extensions or MIME types. Proper file upload security requires server-side validation, content type verification, and storage outside the web root. UNPWNED checks for insecure file upload configurations and tests for common upload bypass techniques in your deployed application.

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Last reviewed: 2026-04-07. Based on publicly available security research and UNPWNED scan telemetry.