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JetBrains TeamCity Reflected Cross-Site Scripting Vulnerability in NPM Registry Integration

Vulnerability

A reflected cross-site scripting vulnerability has been identified in JetBrains TeamCity versions prior to 2025.03.3. This issue occurs within the NPM Registry integration, where user input is not properly sanitized, allowing for the injection of malicious scripts that could be executed in the context of the user's browser.

Impact

Exploitation of this vulnerability allows for reflected cross-site scripting, where an attacker can inject malicious scripts that are executed in the context of the user's browser session.

Remediation

Users can upgrade to JetBrains TeamCity version 2025.03.3 or later to address this vulnerability.

Added: Jun 23, 2025, 3:18 PM
Updated: Jun 23, 2025, 3:18 PM

Vulnerability Rating

Custom Algorithm
spread
5.0
impact
1.7
exploitability
4.5
remediation
7.7
relevance
0.2
threat
0.0
urgency
2.9
incentive
1.7

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