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Mend.io Vulnerability Database
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CVE-2025-36530
Good to know:
Date: August 21, 2025
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 Score
Severity Score
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22Top Fix
Upgrade Version
Upgrade to version github.com/mattermost/mattermost - v9.11.18;github.com/mattermost/mattermost - v10.5.9;github.com/mattermost/mattermost - v10.8.4;github.com/mattermost/mattermost - v10.9.2;github.com/mattermost/mattermost-server - v10.9.2;github.com/mattermost/mattermost-server - v10.8.4;github.com/mattermost/mattermost-server - v10.5.9;github.com/mattermost/mattermost-server - v9.11.18
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | HIGH |
| User Interaction (UI): | NONE |
| Scope (S): | CHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | NONE |
| Availability (A): | NONE |