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JetBrains PyCharm < 2025.3.2 Jupyter Viewer DOM-based XSS

medium Nessus Plugin ID 299007

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Synopsis

The Python IDE installed on the remote host is affected by a cross-site scripting vulnerability.

Description

According to its self-reported version, the JetBrains PyCharm installation on the remote host is prior to 2025.3.2. It is, therefore, affected by a DOM-based Cross-Site Scripting (XSS) vulnerability in its Jupyter viewer page.

The vulnerability exists due to improper neutralization of user-controllable input before it is placed in output used as a web page. A remote attacker could exploit this by convincing a user to view a specially crafted Jupyter notebook, allowing the execution of arbitrary JavaScript code within the context of the user's browser.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade JetBrains PyCharm to version 2025.3.2 or later.

See Also

https://www.jetbrains.com/privacy-security/issues-fixed

Plugin Details

Severity: Medium

ID: 299007

File Name: pycharm_CVE-2026-25847.nasl

Version: 1.4

Type: local

Agent: windows, macosx, unix

Family: Misc.

Published: 2/13/2026

Updated: 2/19/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-25847

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:jetbrains:pycharm

Required KB Items: Host/local_checks_enabled, installed_sw/PyCharm

Exploit Ease: No known exploits are available

Patch Publication Date: 2/9/2026

Vulnerability Publication Date: 2/9/2026

Reference Information

CVE: CVE-2026-25847

IAVA: 2026-A-0148