CVE-2025-2527
Mattermost Fails to Verify User's Permissions When Accessing Groups in github.com/mattermost/mattermost-server
4.3
MEDIUM
CVSS 3.1
EPSS 0.17%
Description
Mattermost Fails to Verify User's Permissions When Accessing Groups in github.com/mattermost/mattermost-server
How to fix CVE-2025-2527
To remediate CVE-2025-2527, upgrade the affected package to a fixed version below.
- Go/github.com/mattermost/mattermost-server—upgrade to 9.11.12+incompatible or later
- —no fix listed
- —no fix listed
- —upgrade to 10.5.3 or later
- —upgrade to 8.0.0-20250411064244-844447fbd57c or later
Is CVE-2025-2527 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- >= 9.11.0+incompatible, < 9.11.12+incompatible, >= 10.5.0+incompatible, < 10.5.3+incompatible
- from 0
- from 0
- >= 10.5.0, < 10.5.3
- from 0, < 8.0.0-20250411064244-844447fbd57c
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |