CVE-2025-58075
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-16

Last updated on: 2025-10-21

Assigner: Mattermost, Inc.

Description
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
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Meta Information
Published
2025-10-16
Last Modified
2025-10-21
Generated
2026-06-16
AI Q&A
2025-10-16
EPSS Evaluated
2026-06-15
NVD
CVE-2025-58075
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
mattermost mattermost_server From 10.5.0 (inc) to 10.5.11 (exc)
mattermost mattermost_server From 10.10.0 (inc) to 10.10.3 (exc)
mattermost mattermost_server From 10.11.0 (inc) to 10.11.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
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Executive Summary

This vulnerability exists in certain versions of Mattermost where the system fails to verify if a user has permission to join a team when using the original invite token. This flaw allows an attacker to manipulate the RelayState parameter to join any team on a Mattermost server regardless of the intended access restrictions.

Impact Analysis

An attacker exploiting this vulnerability can gain unauthorized access to any team on a Mattermost server, potentially exposing sensitive information and communications within those teams. This can lead to confidentiality breaches and unauthorized information disclosure.

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