Weakness
Path Traversal in avatar attachments in Docmost v0.21.0 allows an unauthenticated malicious actor to disclose local files via a POST Request in a public url.
References
- https://github.com/docmost/docmost/blob/0bd7ecb9b03a74e9a5e3f97b6457b82371c5ceb2/apps/server/src/core/attachment/attachment.controller.ts#L345
- https://www.artresilia.com/docmost-v0-21-0-cve-2025-57231-unauthenticated-file-path-traversal/
- https://www.artresilia.com/docmost-v0-21-0-cve-2025-57231-unauthenticated-file-path-traversal/
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