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JetBrains PyCharm DOM-Based Cross-Site Scripting Vulnerability in Jupyter Viewer

Vulnerability

A DOM-based cross-site scripting vulnerability has been identified in JetBrains PyCharm versions prior to 2025.3.2. This issue occurs on the Jupyter viewer page, where improper handling of user input allows for the injection of malicious scripts that are executed in the context of the user's browser.

Impact

Exploitation of this vulnerability allows for DOM-based cross-site scripting, where an attacker can inject and execute malicious scripts in the user's browser session.

Remediation

Users can update to JetBrains PyCharm version 2025.3.2 or later to address this vulnerability.

Added: Feb 9, 2026, 11:19 AM
Updated: Feb 9, 2026, 4:19 PM

Vulnerability Rating

Custom Algorithm
spread
5.4
impact
1.3
exploitability
4.2
remediation
7.7
relevance
2.9
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.