CVE-2026-0998

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 user identity and post ownership in the {{/api/v1/askPMI}} endpoint which allows unauthorized users to start Zoom meetings as any user and overwrite arbitrary posts via direct API calls with manipulated user IDs and post data.. Mattermost Advisory ID: MMSA-2025-00534

Score
CVSS 3.1 4.3 Medium
Status
Analyzed - responsibledisclosure@mattermost.com
Published
2026-02-16
Last modified
2026-02-17
Weaknesses
CWE-862

Affected products

References

 
 
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