CVEvulnerability

CVE-2026-28741

8.1 HIGH Published 2026-04-15 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-04-15
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weaknesses
CWE-352

Description

Mattermost versions 10.11.x <= 10.11.12, 11.5.x <= 11.5.0, 11.4.x <= 11.4.2, 11.3.x <= 11.3.2 fail to validate CSRF tokens on an authentication endpoint which allows an attacker to update a user's authentication method via a CSRF attack by tricking a user into visiting a malicious page. Mattermost Advisory ID: MMSA-2026-00625

Affected configurations

• mattermost mattermost server (>= 10.11.0 < 10.11.13) • mattermost mattermost server (>= 11.3.0 < 11.3.3) • mattermost mattermost server (>= 11.4.0 < 11.4.3) • mattermost mattermost server (>= 11.5.0 < 11.5.1)

Related

Weakness · CWE (1)

  • CWE-352 Cross-Site Request Forgery weakness

References