CVE-2025-27933
Medium
Description
Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8 fail to fail to enforce channel conversion restrictions, which allows members with permission to convert public channels to private ones to also convert private ones to public
SeverityMedium
CVSS5.4
Exploit probability—
Product
Mattermost Server
PublishedMar 21, 2025
First seenMar 21, 2025
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- mattermost mattermost_server9.11.9, 10.3.4, 10.4.3 or later
- github.com/mattermost/mattermost/server/v810.4.3, 10.3.4, 9.11.9, 8.0.0-20250218135018-e644e3c8e393 or later
- github.com/mattermost/mattermost-server9.11.9, 9.11.9+incompatible, 10.3.4+incompatible, 10.4.3+incompatible or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mattermost mattermost_server | 9.11.0 ≤ v < 9.11.9, 10.3.0 ≤ v < 10.3.4, 10.4.0 ≤ v < 10.4.3 | 9.11.9, 10.3.4, 10.4.3 |
| github.com/mattermost/mattermost/server/v8Go | 10.4.0 ≤ v < 10.4.3, 10.3.0 ≤ v < 10.3.4, 9.11.0 ≤ v < 9.11.9, v < 8.0.0-20250218135018-e644e3c8e393 | 10.4.3, 10.3.4, 9.11.9, 8.0.0-20250218135018-e644e3c8e393 |
| github.com/mattermost/mattermost-serverGo | v < 9.11.9, 9.11.0+incompatible ≤ v < 9.11.9+incompatible, 10.3.0+incompatible ≤ v < 10.3.4+incompatible, 10.4.0+incompatible ≤ v < 10.4.3+incompatible | 9.11.9, 9.11.9+incompatible, 10.3.4+incompatible, 10.4.3+incompatible |
| github.com/mattermost/mattermost-server/v5Go | No range specified | — |
| github.com/mattermost/mattermost-server/v6Go | No range specified | — |
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