CVE-2025-54527: JetBrains Youtrack

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

In JetBrains YouTrack before 2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344 improper iframe configuration in widget sandbox allows popups to bypass security restrictions

Affected products

• JetBrains Youtrack: before 2025.2.86935 (fixed in 2025.2.86935); from 2025.2.87000, before 2025.2.87167 (fixed in 2025.2.87167); from 2025.3, before 2025.3.87341 (fixed in 2025.3.87341)

Published 2025-07-28. Last modified 2026-06-17.