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JetBrains YouTrack Stored Cross-Site Scripting Vulnerability in Project Notification Templates

Vulnerability

A stored cross-site scripting vulnerability has been identified in JetBrains YouTrack versions prior to 2026.1.13162. This issue allows users to inject malicious scripts into project notification templates, which are then executed when the templates are viewed.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the affected notification templates.

Remediation

Users can update to JetBrains YouTrack version 2026.1.13162 or later to address this vulnerability.

Added: May 29, 2026, 7:35 PM
Updated: May 29, 2026, 7:35 PM

Vulnerability Rating

Custom Algorithm
spread
5.0
impact
1.7
exploitability
5.0
remediation
7.7
relevance
9.7
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.