CVE-2026-27659
Published: Mar 25, 2026
Modified: Mar 25, 2026
CVSS v3.1
4.6
Description
Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to properly validate CSRF tokens in the /api/v4/access_control_policies/{policy_id}/activate endpoint, which allows an attacker to trick an admin into changing access control policy active status via a crafted request.. Mattermost Advisory ID: MMSA-2026-00578
| Vendor | Product | Versions |
|---|---|---|
Mattermost | Mattermost | affected 11.2.0 - <= 11.2.2affected 10.11.0 - <= 10.11.10affected 11.4.0 - <= 11.4.0affected 11.3.0 - <= 11.3.1unaffected 11.5.0+4 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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