Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin
Fixes

Solution

Update Mattermost to versions 9.7.0, 9.5.4, 9.6.2, 8.1.13 or higher.


Workaround

No workaround given by the vendor.

References
History

Tue, 30 Sep 2025 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Mattermost mattermost Server
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Vendors & Products Mattermost mattermost Server

cve-icon MITRE

Status: PUBLISHED

Assigner: Mattermost

Published:

Updated: 2024-08-02T01:59:49.900Z

Reserved: 2024-05-23T10:57:59.888Z

Link: CVE-2024-31859

cve-icon Vulnrichment

Updated: 2024-05-28T15:36:49.990Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-26T14:15:08.907

Modified: 2025-09-30T15:20:13.333

Link: CVE-2024-31859

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-13T11:31:08Z