VDB
GO-2025-4186
GO-2025-4186
PUBLISHED
CVSS 9.300000190734863 CRITICAL
Mattermost Server does not prevent System Admin from arbitrary file creation in github.com/mattermost/mattermost-server
Risk Scores
CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| github.com | mattermost/mattermost-server | 4.3.0-rc1+incompatible, 4.3.0-rc1 |
Timeline
- Dec 8, 2025 CVE Published
- Dec 9, 2025 CVE Updated
- May 1, 2026 Security Advisory
References
- https://github.com/advisories/GHSA-9rr5-q43r-ccv4 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-18875 advisory
- https://mattermost.com/security-updates url
- https://github.com/mattermost/mattermost/commit/6be8113eb60cf5ddd2dc1c3f4db05cae0c183086 fix
- https://github.com/mattermost/mattermost/commit/6d3cb2ce07fc799832081e93843b405b390057fa fix
- https://github.com/mattermost/mattermost/commit/fadd9514f6e71590aba781a7035e1de4150137b0 fix