CVE-2025-57731: JetBrains Youtrack

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

In JetBrains YouTrack before 2025.2.92387 stored XSS was possible via Mermaid diagram content

Affected products

• JetBrains Youtrack: before 2025.2.92387 (fixed in 2025.2.92387)

Published 2025-08-20. Last modified 2026-06-17.