CVE-2023-27263: Mattermost

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

A missing permissions check in the /plugins/playbooks/api/v0/runs API in Mattermost allows an attacker to list and view playbooks belonging to a team they are not a member of.

Affected products

• Mattermost Mattermost: up to and including 7.1.4; version 7.4.0 only; version 7.5.0 only; version 7.5.1 only

Published 2023-02-27. Last modified 2026-06-17.