CVE-2023-7113: Mattermost Server

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

Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.

Affected products

• Mattermost Mattermost Server: before 8.1.7 (fixed in 8.1.7)

Published 2023-12-29. Last modified 2026-06-17.