CVE-2026-34213
Medium · 5.4CVSS
5.4
EPSS
0.3%
Published
Apr 14, 2026
CISA due date
—
The record
Docmost is open-source collaborative wiki and documentation software. Starting in version 0.3.0 and prior to version 0.71.0, improper authorization in Docmost allows a low-privileged authenticated user to overwrite another page's attachment within the same workspace by supplying a victim `attachmentId` to `POST /api/files/upload`. This is a remote integrity issue requiring no victim interaction. Version 0.71.0 contains a patch.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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