CVE-2026-0997
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
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3Tags
Description
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
Analysis
Mattermost and Zoom plugin versions fail to properly authenticate users before allowing modifications to Zoom meeting restrictions, enabling any logged-in user to alter meeting settings across arbitrary channels. Affected versions include Mattermost 11.1.x through 11.1.2, 10.11.x through 10.11.9, 11.2.x through 11.2.1, and Zoom plugin versions up to 1.11.0. …
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Remediation
Within 30 days: Identify affected systems running Zoom and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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Leaving vuln.today
GHSA-2phx-frhf-xr55