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…

PriorityP426medium4.3CVSS 3.1

AVNACLPRLUINSUCNILAN

EPSS

0.15%

4.9th percentile

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

Affected

8 ranges

Vendor	Product	Version range	Fixed in
github.com	mattermost_mattermost-plugin-zoom	>= 0 < 1.11.0	1.11.0
mattermost	mattermost	10.11.0 – 10.11.9	—
mattermost	mattermost	11.1.0 – 11.1.2	—
mattermost	mattermost	11.2.0 – 11.2.1	—
mattermost	mattermost_server	>= 10.11.0 < 10.11.10	10.11.10
mattermost	mattermost_server	>= 11.1.0 < 11.1.3	11.1.3
mattermost	mattermost_server	>= 11.2.0 < 11.2.2	11.2.2
mattermost	zoom	<= 1.11.0	—

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