Moderate severityNVD Advisory· Published Aug 21, 2025· Updated Aug 21, 2025
Import Path Traversal Enables Unauthorized Unsigned Plugin Installation
CVE-2025-36530
Description
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost-serverGo | >= 10.9.0, < 10.9.2 | 10.9.2 |
github.com/mattermost/mattermost-serverGo | >= 10.8.0, < 10.8.4 | 10.8.4 |
github.com/mattermost/mattermost-serverGo | >= 10.5.0, < 10.5.9 | 10.5.9 |
github.com/mattermost/mattermost-serverGo | >= 9.11.0, < 9.11.18 | 9.11.18 |
github.com/mattermost/mattermost/server/v8Go | < 8.0.0-20250619095651-9dd0b3943e55 | 8.0.0-20250619095651-9dd0b3943e55 |
github.com/mattermost/mattermost-server/v5Go | <= 5.11.1 | — |
github.com/mattermost/mattermost-server/v6Go | <= 6.7.2 | — |
Affected products
1- Range: 10.9.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/advisories/GHSA-gq3r-5833-5532ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-36530ghsaADVISORY
- mattermost.com/security-updatesghsaWEB
- pkg.go.dev/vuln/GO-2025-3901ghsaWEB
News mentions
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