CVE-2022-1333: Mattermost Playbooks

Medium severity, CVSS 6.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Mattermost Playbooks plugin v1.24.0 and earlier fails to properly check the limit on the number of webhooks, which allows authenticated and authorized users to create a specifically drafted Playbook which could trigger a large amount of webhook requests leading to Denial of Service.

Affected products

• Mattermost Playbooks: up to and including 1.24.0

Published 2022-04-13. Last modified 2026-06-17.