CVE-2025-20036: Mattermost Mobile

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Mattermost Mobile Apps versions <=2.22.0 fail to properly validate post props which allows a malicious authenticated user to cause a crash via a malicious post.

Affected products

• Mattermost Mattermost Mobile: before 2.23.0 (fixed in 2.23.0)

Published 2025-01-15. Last modified 2026-06-17.