CVE-2026-0997
Received
Received - Intake
Authorization Bypass in Mattermost Zoom Plugin Allows Privilege Escalation
Vulnerability report for CVE-2026-0997, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-02-16
Last updated on: 2026-02-18
Assigner: Mattermost, Inc.
Description
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
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mattermost | mattermost_server | From 10.11.0 (inc) to 10.11.10 (exc) |
| mattermost | mattermost_server | From 11.2.0 (inc) to 11.2.2 (exc) |
| mattermost | mattermost_server | From 11.1.0 (inc) to 11.1.3 (exc) |
| mattermost | zoom | to 1.11.0 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-863 | The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. |
