CVE-2022-1384: Mattermost Server

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Mattermost version 6.4.x and earlier fails to properly check the plugin version when a plugin is installed from the Marketplace, which allows an authenticated and an authorized user to install and exploit an old plugin version from the Marketplace which might have known vulnerabilities.

Affected products

• Mattermost Mattermost Server: before 6.5.0 (fixed in 6.5.0)

Published 2022-04-19. Last modified 2026-06-17.