CVE-2026-2462 (GCVE-0-2026-2462)
Vulnerability from cvelistv5
Published
2026-03-16 12:00
Modified
2026-03-17 03:55
Severity ?
6.6 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
CWE
  • CWE-863 - Incorrect Authorization
Summary
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to restrict plugin installation on CI test instances with default admin credentials which allows an unauthenticated attacker to achieve remote code execution and exfiltrate sensitive configuration data including AWS and SMTP credentials via uploading a malicious plugin after changing the import directory. Mattermost Advisory ID: MMSA-2025-00528
References
Impacted products
Vendor Product Version
Mattermost Mattermost Version: 11.3.0   ≤ 11.3.0
Version: 11.2.0   ≤ 11.2.2
Version: 10.11.0   ≤ 10.11.10
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