CVE-2026-34213

MEDIUM

5.4

Description

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.

CVE Details

CVSS v3.1 Score5.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published4/14/2026

Last Modified4/14/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-639

References

https://github.com/docmost/docmost/security/advisories/GHSA-89fp-2hch-j9gp(security-advisories@github.com)

IOC Correlations

No correlations recorded

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