CVE-2025-3228
Mattermost allows an unauthorized Guest user access to Playbook in github.com/mattermost/mattermost-server
4.3
MEDIUM
CVSS 3.1
EPSS 0.18%
Description
Mattermost allows an unauthorized Guest user access to Playbook in github.com/mattermost/mattermost-server
How to fix CVE-2025-3228
To remediate CVE-2025-3228, upgrade the affected package to a fixed version below.
- Go/github.com/mattermost/mattermost-server—upgrade to 0.0.0-20250520060012-d0380305ef7a or later
- —upgrade to 0.0.0-20250520060012-d0380305ef7a or later
- —no fix listed
- —no fix listed
- —upgrade to 8.0.0-20250520060012-d0380305ef7a or later
- —upgrade to 8.0.0-20250520060012-d0380305ef7a or later
Is CVE-2025-3228 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 0.0.0-20250520060012-d0380305ef7a
- from 0, < 0.0.0-20250520060012-d0380305ef7a, >= 9.11.0+incompatible, < 9.11.16+incompatible, >= 10.5.0+incompatible, < 10.5.6+incompatible, >= 10.6.0+incompatible, < 10.6.6+incompatible, >= 10.7.0+incompatible, < 10.7.3+incompatible, >= 10.8.0+incompatible, < 10.8.1+incompatible
- from 0
- from 0
- from 0, < 8.0.0-20250520060012-d0380305ef7a
- from 0, < 8.0.0-20250520060012-d0380305ef7a
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 |