CVE-2025-14573
Received Received - Intake
Permission Bypass in Mattermost 10.11.x Allows Unauthorized User Addition

Publication date: 2026-02-16

Last updated on: 2026-02-18

Assigner: Mattermost, Inc.

Description
Mattermost versions 10.11.x <= 10.11.9 fail to enforce invite permissions when updating team settings, which allows team administrators without proper permissions to bypass restrictions and add users to their team via API requests. Mattermost Advisory ID: MMSA-2025-00561
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Meta Information
Published
2026-02-16
Last Modified
2026-02-18
Generated
2026-06-16
AI Q&A
2026-02-16
EPSS Evaluated
2026-06-15
NVD
CVE-2025-14573
EUVD
EUVD-2025-206979
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
mattermost mattermost_server From 10.11.0 (inc) to 10.11.10 (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 Mattermost versions 10.11.x up to and including 10.11.9. It occurs because the software fails to enforce invite permissions properly when updating team settings. As a result, team administrators who do not have the correct permissions can bypass restrictions and add users to their team through API requests.

Impact Analysis

The impact of this vulnerability is that unauthorized team administrators can add users to teams without proper permission. This could lead to unauthorized access to team resources and information, potentially compromising the confidentiality and integrity of data within the affected Mattermost teams.

Compliance Impact

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