Is CVE-2026-34213 actively exploited?

No active exploitation of CVE-2026-34213 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34213 be exploited remotely?

Yes. CVE-2026-34213 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34213?

CVE-2026-34213 has a CVSS score of 5.4 (MEDIUM).

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MEDIUM

CVE-2026-34213

CWE-639Published: April 14, 2026· Updated: Apr 17, 2026

5.4

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:10.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-34213 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.