CVE-2022-1003: Mattermost

Medium severity, CVSS 4.9. EPSS: 0.5% chance of exploitation in the next 30 days.

One of the API in Mattermost version 6.3.0 and earlier fails to properly protect the permissions, which allows the system administrators to combine the two distinct privileges/capabilities in a way that allows them to override certain restricted configurations like EnableUploads.

Affected products

• Mattermost Mattermost: before 6.4.0 (fixed in 6.4.0)

Published 2022-03-18. Last modified 2026-06-17.