Description
Mattermost Plugins versions <=11.5 11.1.5 10.13.11 11.3.4.0 fail to have API-level checks on which groups the user can create issues or attach comments to which allows a user that is member of multiple groups to create issues to a locked group via direct API requests. Mattermost Advisory ID: MMSA-2026-00602
CVSS 4.3EPSS 0.152%Risk 0.44
View source- Published
- 2026-05-18 08:16:14
- Affected versions
- <= 11.5, <= 11.1.5, <= 10.13.11, <= 11.3.4.0
- Type
- Core software
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N