Vulnerability · Published May 30, 2025 · Assigned by Mattermost
CVE-2025-3611Improper Access Control in Mattermost allows System Managers to view team details despite role restrictions
Low 3.1
In plain English
A low-severity incorrect authorization in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Mattermost versions 10.7.x <= 10.7.0, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly enforce access control restrictions for System Manager roles, allowing authenticated users with System Manager privileges to view team details they should not have access to via direct API requests to team endpoints, even when explicitly configured with 'No access' to Teams in the System Console.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 10.5.4+incompatible, 10.7.1+incompatible, 9.11.13+incompatible | GO-2025-3728 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2025-3728 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2025-3728 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250414154356-6f33b721de76 | GHSA-86jg-35xj-3vv5 |
| Go | github.com/mattermost/mattermost/server/v8 | 10.7.1 | GHSA-86jg-35xj-3vv5 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250414154356-6f33b721de76 | GO-2025-3728 |
| Go | github.com/mattermost/mattermost/server/v8 | 10.5.4 | GHSA-86jg-35xj-3vv5 |
| Go | github.com/mattermost/mattermost/server/v8 | 9.11.13 | GHSA-86jg-35xj-3vv5 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 10.7.010.5.0 – through 10.5.39.11.0 – through 9.11.12 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N