CVE-2024-2445: Mattermost Server

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Mattermost Jira plugin versions shipped with Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to escape user-controlled outputs when generating HTML pages, which allows an attacker to perform reflected cross-site scripting attacks against the users of the Mattermost server.

Affected products

• Mattermost Mattermost Server: from 8.1.0, before 8.1.10 (fixed in 8.1.10); from 9.2.0, before 9.2.6 (fixed in 9.2.6); from 9.3.0, before 9.3.2 (fixed in 9.3.2); from 9.4.0, before 9.4.3 (fixed in 9.4.3)

Published 2024-03-15. Last modified 2026-06-17.