CVE-2025-58075: Arbitrary Mattermost Team can be joined by manipulating the SAML RelayState
Mattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the RelayState
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2025-58075?
CVE-2025-58075 is classified as a high-severity vulnerability due to its potential for unauthorized access.
How do I fix CVE-2025-58075?
To fix CVE-2025-58075, upgrade Mattermost to version 10.11.2 or newer, 10.10.3 or newer, or 10.5.11 or newer.
Who is affected by CVE-2025-58075?
CVE-2025-58075 affects Mattermost versions 10.11.x up to and including 10.11.1, 10.10.x up to and including 10.10.2, and 10.5.x up to and including 10.5.10.
What kind of attacks can CVE-2025-58075 enable?
CVE-2025-58075 allows attackers to join any team on a Mattermost server without proper permissions by manipulating the original invite token.
What is the impact of not addressing CVE-2025-58075?
Not addressing CVE-2025-58075 can lead to significant security breaches as unauthorized users can gain access to private teams and sensitive information.