CVE-2025-4981
Mattermost allows authenticated users to write files to arbitrary locations in github.com/mattermost/mattermost-server
9.9
CRITICAL
CVSS 3.1
EPSS 1.7%
Description
Mattermost allows authenticated users to write files to arbitrary locations in github.com/mattermost/mattermost-server
How to fix CVE-2025-4981
To remediate CVE-2025-4981, upgrade the affected package to a fixed version below.
- Go/github.com/mattermost/mattermost-server—upgrade to 0.0.0-20250519205859-65aec10162f6 or later
- —upgrade to 0.0.0-20250519205859-65aec10162f6 or later
- —no fix listed
- —no fix listed
- —upgrade to 8.0.0-20250519205859-65aec10162f6 or later
- —upgrade to 8.0.0-20250519205859-65aec10162f6 or later
Is CVE-2025-4981 being exploited?
Low — EPSS is 1.7%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 0.0.0-20250519205859-65aec10162f6
- from 0, < 0.0.0-20250519205859-65aec10162f6, >= 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, < 8.0.0-20250519205859-65aec10162f6
- from 0, < 8.0.0-20250519205859-65aec10162f6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |