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
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
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History
Wed, 18 Feb 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Mattermost mattermost Server
Mattermost zoom |
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* cpe:2.3:a:mattermost:zoom:*:*:*:*:*:mattermost:*:* |
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| Vendors & Products |
Mattermost mattermost Server
Mattermost zoom |
Tue, 17 Feb 2026 15:15:00 +0000
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|---|---|---|
| Metrics |
ssvc
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Mon, 16 Feb 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Mattermost
Mattermost mattermost |
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| Vendors & Products |
Mattermost
Mattermost mattermost |
Mon, 16 Feb 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 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 | |
| Title | Mattermost Zoom Plugin allows unauthorized meeting creation and post modification via insufficient API access controls | |
| Weaknesses | CWE-862 | |
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published: 2026-02-16T09:54:24.732Z
Updated: 2026-02-17T15:00:44.691Z
Reserved: 2026-01-15T15:58:22.233Z
Link: CVE-2026-0998
Updated: 2026-02-17T15:00:41.277Z
Status : Analyzed
Published: 2026-02-16T10:16:07.983
Modified: 2026-02-18T20:22:51.917
Link: CVE-2026-0998
No data.