CVE-2025-1412HIGH 8.8EPSS p14.5%

CVE-2025-1412CVE-2025-1412

Description

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.24% probability of exploitation · percentile 14.5% · 2026-06-18T12:00:27Z
Published2025-02-24
Last modified2025-10-01

Underlying weaknesses· 1

CWE-384

References

  1. https://mattermost.com/security-updates

1

TypeTargetConfidenceTier
WeaknessSession Fixationcwe-3840%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.