What is CVE-2025-25274?

CVE-2025-25274 is a medium-severity vulnerability in Mattermost, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2025-03-21.

How severe is CVE-2025-25274?

Medium severity. CVSS v3 base score is 4.3 out of 10.

RCE in Mattermost

CVE-2025-25274

Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8 fail to restrict command execution in archived channels, which allows authenticated users to run commands in archived channels.

Vulnerability class: Broken Access Control

Published 2025-03-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (29.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Mattermost — versions 10.4.0, 10.3.0, 9.11.0
Mattermost Server

Weakness classification (CWE)

References

mattermost.com/security-updates (Vendor Advisory)

Frequently asked questions

What is CVE-2025-25274?: CVE-2025-25274 is a medium-severity vulnerability in Mattermost, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2025-03-21.
How severe is CVE-2025-25274?: Medium severity. CVSS v3 base score is 4.3 out of 10.