CVSS 3.5 (low) · published 2026-10-26
Mattermost versions 11.7.x <= 11.7.10 fail to validate reserved system post types on the scheduled post creation and publication paths which allows an authenticated channel member to publish messages rendering as trusted system events via the scheduled post endpoint.. Mattermost Advisory ID: MMSA-2026-00732
Affected products (NVD): mattermost mattermost_server
Fixed in (NVD): 11.7.11
Weakness: CWE-863
Source: NVD CVE-2026-93847
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