CVE-2025-24920
Mattermost Fails to Restrict Bookmark Creation and Updates in Archived Channels in github.com/mattermost/mattermost-server
4.3
MEDIUM
CVSS 3.1
EPSS 0.21%
Description
Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8, 10.5.x <= 10.5.0 fail to restrict bookmark creation and updates in archived channels, which allows authenticated users created or update bookmarked in archived channels
How to fix CVE-2025-24920
To remediate CVE-2025-24920, upgrade the affected package to a fixed version below.
- —upgrade to 10.0.0 or later
- —upgrade to 9.11.9+incompatible or later
- —no fix listed
- —no fix listed
- —upgrade to 10.4.3 or later
- —no fix listed
Is CVE-2025-24920 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- >= 9.11.0, < 10.0.0, >= 10.3.0, < 10.5.1
- >= 9.11.0+incompatible, < 9.11.9+incompatible, >= 10.3.0+incompatible, < 10.3.4+incompatible, >= 10.4.0+incompatible, < 10.4.3+incompatible, >= 10.5.0+incompatible, < 10.5.1+incompatible
- from 0
- from 0
- >= 10.4.0, < 10.4.3
- from 0
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:N/I:L/A:N |