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Mend.io Vulnerability Database
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CVE-2025-13324
Good to know:
Date: December 17, 2025
Mattermost versions 10.11.x <= 10.11.5, 11.0.x <= 11.0.4, 10.12.x <= 10.12.2 fail to invalidate remote cluster invite tokens when using the legacy (version 1) protocol or when the confirming party does not provide a refreshed token, which allows an attacker who has obtained an invite token to authenticate as the remote cluster and perform limited actions on shared channels even after the invitation has been legitimately confirmed.
Severity Score
Related Resources (7)
Severity Score
Weakness Type (CWE)
Incorrect Authorization
CWE-863Top Fix
Upgrade Version
Upgrade to version github.com/mattermost/mattermost - v10.11.6;github.com/mattermost/mattermost - v10.12.3;github.com/mattermost/mattermost - v11.0.5;github.com/mattermost/mattermost - v10.12.2;github.com/mattermost/mattermost - v10.11.5;github.com/mattermost/mattermost - v11.0.4;github.com/mattermost/mattermost/server/v8 - v8.0.0-20251031095924-e7e23b94e006;github.com/mattermost/mattermost-server - v11.0.4
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | HIGH |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | LOW |
| Availability (A): | NONE |