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
Metrics
Affected Vendors & Products
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
Link | Providers |
---|---|
https://mattermost.com/security-updates |
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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
|

Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2024-08-02T01:59:49.900Z
Reserved: 2024-05-23T10:57:59.888Z
Link: CVE-2024-31859

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

Status : Analyzed
Published: 2024-05-26T14:15:08.907
Modified: 2025-09-30T15:20:13.333
Link: CVE-2024-31859

No data.

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