VULNERABILITY INTELLIGENCE

CVE-2025-41410

CVSS score5.4 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2025-10-16
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Description

Mattermost versions 10.10.x <= 10.10.2, 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to validate email ownership during Slack import process which allows attackers to create verified user accounts with arbitrary email domains via malicious Slack import data to bypass email-based team access restrictions

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-862

Primary references