Vulnerability Details Affected Vendor: Open WebUI Affected Product: Open WebUI Affected Version: 0.1.105 Platform: Debian 12 CWE Classification: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), CWE-434: Unrestricted Upload of File with Dangerous Type CVE ID: CVE-2024-6707 Vulnerability Description Attacker controlled files can be uploaded to arbitrary locations on the web server's filesystem by abusing a path traversal vulnerability. Technical Description When attaching files to a prompt by clicking the plus sign (+) on the left of the message input box when using the Open WebUI HTTP interface, the file is uploaded to a static upload directory. The name of the file is derived from the original HTTP upload request and is not validated or sanitized. This allows for users to upload files with names containing dot-segments in the file path and traverse out of the intended uploads directory. Effectively, users can upload files anywhere on the filesystem the user running the web server has permission. This can be visualized by examining the python code for the "/rag/api/v1/doc" API route: @app.post("/doc") def store_doc( collection_name: Optional[str] = Form(None), file: UploadFile = File(…), user=Depends(get_current_user), ): # "https://www.gutenberg.org/files/1727/1727-h/1727-h.htm" …Read More