CVE-2025-3446
Medium
Description
Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to check the correct permissions which allows authenticated users who only have permission to invite non-guest users to a team to add guest users to that team via the API to add a single user to a team.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Mattermost Server
PublishedMay 15, 2025
First seenMay 15, 2025
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- mattermost mattermost_server9.11.12, 10.4.5, 10.5.3, 10.6.2 or later
- github.com/mattermost/mattermost/server/v810.6.2, 10.5.3, 10.4.5, 9.11.12, 8.0.0-20250415054241-76ab3867b785 or later
- github.com/mattermost/mattermost-server9.11.12+incompatible, 10.4.5+incompatible, 10.5.3+incompatible, 10.6.2+incompatible or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mattermost mattermost_server | 9.11.0 ≤ v < 9.11.12, 10.4.0 ≤ v < 10.4.5, 10.5.0 ≤ v < 10.5.3, 10.6.0 ≤ v < 10.6.2 | 9.11.12, 10.4.5, 10.5.3, 10.6.2 |
| github.com/mattermost/mattermost/server/v8Go | 10.6.0 ≤ v < 10.6.2, 10.5.0 ≤ v < 10.5.3, 10.4.0 ≤ v < 10.4.5, 9.11.0 ≤ v < 9.11.12, v < 8.0.0-20250415054241-76ab3867b785 | 10.6.2, 10.5.3, 10.4.5, 9.11.12, 8.0.0-20250415054241-76ab3867b785 |
| github.com/mattermost/mattermost-serverGo | 9.11.0+incompatible ≤ v < 9.11.12+incompatible, 10.4.0+incompatible ≤ v < 10.4.5+incompatible, 10.5.0+incompatible ≤ v < 10.5.3+incompatible, 10.6.0+incompatible ≤ v < 10.6.2+incompatible | 9.11.12+incompatible, 10.4.5+incompatible, 10.5.3+incompatible, 10.6.2+incompatible |
| github.com/mattermost/mattermost-server/v5Go | No range specified | — |
| github.com/mattermost/mattermost-server/v6Go | No range specified | — |
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