CVE-2025-2527
Medium
Description
Mattermost versions 10.5.x <= 10.5.2, 9.11.x <= 9.11.11 failed to properly verify a user's permissions when accessing groups, which allows an attacker to view group information via an API request.
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, 10.5.3 or later
- github.com/mattermost/mattermost/server/v810.5.3, 9.11.12, 8.0.0-20250411064244-844447fbd57c or later
- github.com/mattermost/mattermost-server9.11.12+incompatible, 10.5.3+incompatible or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mattermost mattermost_server | 9.11.0 ≤ v < 9.11.12, 10.5.0 ≤ v < 10.5.3 | 9.11.12, 10.5.3 |
| github.com/mattermost/mattermost/server/v8Go | 10.5.0 ≤ v < 10.5.3, 9.11.0 ≤ v < 9.11.12, v < 8.0.0-20250411064244-844447fbd57c | 10.5.3, 9.11.12, 8.0.0-20250411064244-844447fbd57c |
| github.com/mattermost/mattermost-serverGo | 9.11.0+incompatible ≤ v < 9.11.12+incompatible, 10.5.0+incompatible ≤ v < 10.5.3+incompatible | 9.11.12+incompatible, 10.5.3+incompatible |
| github.com/mattermost/mattermost-server/v5Go | No range specified | — |
| github.com/mattermost/mattermost-server/v6Go | No range specified | — |
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