CVE-2023-2784: Mattermost

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Mattermost fails to verify if the requestor is a sysadmin or not, before allowing `install` requests to the Apps allowing a regular user send install requests to the Apps.

Affected products

• Mattermost Mattermost: from 7.8.0, up to and including 7.8.4; from 7.9.0, up to and including 7.9.3; version 7.10.0 only

Published 2023-06-16. Last modified 2026-06-17.