CVSS 3.1
4.9 mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:NCVE-2025-36530
Medium (4.9) in mattermost mattermost server. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in github.com/mattermost/mattermost-server 10.5.9, 10.5.9+incompatible, 10.8.4.
Mattermost versions 10.9.x <= 10.9.1, 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate file paths during plugin import operations which allows restricted admin users to install unauthorized custom plugins via path traversal in the import functionality, bypassing plugin signature enforcement and marketplace restrictions.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-gq3r-5833-5532 | Go | github.com/mattermost/mattermost-server | >=10.9.0 <10.9.2 | 10.9.2 |
| GHSA-gq3r-5833-5532 | Go | github.com/mattermost/mattermost-server | >=10.8.0 <10.8.4 | 10.8.4 |
| GHSA-gq3r-5833-5532 | Go | github.com/mattermost/mattermost-server | >=10.5.0 <10.5.9 | 10.5.9 |
| GHSA-gq3r-5833-5532 | Go | github.com/mattermost/mattermost-server | >=9.11.0 <9.11.18 | 9.11.18 |
| GHSA-gq3r-5833-5532 | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250619095651-9dd0b3943e55 | 8.0.0-20250619095651-9dd0b3943e55 |
| GHSA-gq3r-5833-5532 | Go | github.com/mattermost/mattermost-server/v5 | <=5.11.1 | no fix published |
| GHSA-gq3r-5833-5532 | Go | github.com/mattermost/mattermost-server/v6 | <=6.7.2 | no fix published |
| GO-2025-3901 | Go | github.com/mattermost/mattermost-server | >=9.11.0+incompatible <9.11.18+incompatible >=10.5.0+incompatible <10.5.9+incompatible >=10.8.0+incompatible <10.8.4+incompatible >=10.9.0+incompatible <10.9.2+incompatible | 9.11.18+incompatible, 10.5.9+incompatible, 10.8.4+incompatible, 10.9.2+incompatible |
| GO-2025-3901 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2025-3901 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2025-3901 | Go | github.com/mattermost/mattermost/server/v8 | all versions | no fix published |