CVE-2026-0997

Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions <=1.11.0 fail to validate the authenticated user when processing {{/plugins/zoom/api/v1/channel-preference}}, which allows any logged-in user to change Zoom meeting restrictions for arbitrary channels via crafted API requests.. Mattermost Advisory ID: MMSA-2025-00558

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://mattermost.com/security-updates	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:zoom::::::mattermost::*

History

18 Feb 2026, 20:23

Type	Values Removed	Values Added
References	~~() https://mattermost.com/security-updates -~~	() https://mattermost.com/security-updates - Vendor Advisory
First Time		Mattermost mattermost Server Mattermost zoom Mattermost
CPE		cpe:2.3:a:mattermost:zoom::::::mattermost::* cpe:2.3:a:mattermost:mattermost_server::::::::

18 Feb 2026, 17:52

Type	Values Removed	Values Added
Summary		(es) Las versiones de Mattermost 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 y las versiones del plugin de Mattermost Zoom <=1.11.0 no validan al usuario autenticado al procesar {{/plugins/zoom/api/v1/channel-preference}}, lo que permite a cualquier usuario con sesión iniciada cambiar las restricciones de las reuniones de Zoom para canales arbitrarios a través de solicitudes de API manipuladas. ID de aviso de Mattermost: MMSA-2025-00558.

16 Feb 2026, 10:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-16 10:16

Updated : 2026-02-18 20:23

NVD link : CVE-2026-0997

Mitre link : CVE-2026-0997

CVE.ORG link : CVE-2026-0997

JSON object : View

Products Affected

mattermost

mattermost_server
zoom

CWE

CWE-863

Incorrect Authorization

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