Vulnerability in Mattermost

CVE-2025-1412

Mattermost versions 9.11.x <= 9.11.6, 10.4.x <= 10.4.1 fail to invalidate all active sessions when converting a user to a bot, with allows the converted user to escalate their privileges depending on the permissions granted to the bot.

EPSS: 0.002 (16.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-1412?
CVE-2025-1412 is a low-severity vulnerability in Mattermost, classified under Session Fixation. CVSS score: 3.1/10. Published 2025-02-24.
How severe is CVE-2025-1412?
Low severity. CVSS v3 base score is 3.1 out of 10.