PyCharm 2025.3.1 DOM XSS in Jupyter Viewer
CVE-2026-25847 Published on February 9, 2026

In JetBrains PyCharm before 2025.3.2 a DOM-based XSS on Jupyter viewer page was possible

NVD

Vulnerability Analysis

CVE-2026-25847 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and a small impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
LOW

Weakness Type

What is a XSS Vulnerability?

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVE-2026-25847 has been classified to as a XSS vulnerability or weakness.


Products Associated with CVE-2026-25847

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JetBrains Pycharm
 

Affected Versions

JetBrains PyCharm:

Exploit Probability

EPSS
0.01%
Percentile
0.27%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.