CVE-2024-24774: Mattermost Server

Medium severity, CVSS 4.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Mattermost Jira Plugin handling subscriptions fails to check the security level of an incoming issue or limit it based on the user who created the subscription resulting in registered users on Jira being able to create webhooks that give them access to all Jira issues.

Affected products

• Mattermost Mattermost Server: up to and including 8.1.7

Published 2024-02-09. Last modified 2026-06-17.