Open WebUI Allows Arbitrary File Reading and Deletion
High severity
GitHub Reviewed
Published
Mar 20, 2025
to the GitHub Advisory Database
•
Updated Oct 15, 2025
Description
Published by the National Vulnerability Database
Mar 20, 2025
Published to the GitHub Advisory Database
Mar 20, 2025
Reviewed
Mar 21, 2025
Last updated
Oct 15, 2025
An improper access control vulnerability in open-webui/open-webui v0.3.8 allows attackers to view and delete any files. The application does not verify whether the attacker is an administrator, allowing the attacker to directly call the GET /api/v1/files/ interface to retrieve information on all files uploaded by users, which includes the ID values. The attacker can then use the GET /api/v1/files/{file_id} interface to obtain information on any file and the DELETE /api/v1/files/{file_id} interface to delete any file.
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