CVE-2025-61656
Unknown Unknown - Not Provided

Cross-Site Scripting in Wikimedia VisualEditor ClipboardHandler.js

Publication date: 2026-02-03

Last updated on: 2026-04-09

Assigner: wikimedia-foundation

Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation VisualEditor. This vulnerability is associated with program files src/ce/ve.Ce.ClipboardHandler.Js. This issue affects VisualEditor: from * before 1.39.14, 1.43.4, 1.44.1.

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Meta Information

Published
2026-02-03
Last Modified
2026-04-09
Generated
2026-07-06
AI Q&A
2026-02-04
EPSS Evaluated
2026-07-05
NVD
CVE-2025-61656
EUVD
EUVD-2025-206652

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
mediawiki visual_editor From 1.39.0 (inc) to 1.39.14 (exc)
mediawiki visual_editor From 1.43.0 (inc) to 1.43.4 (exc)
mediawiki visual_editor 1.44.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product 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.

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Executive Summary

This vulnerability is a Cross-site Scripting (XSS) issue in the Wikimedia Foundation VisualEditor. It occurs due to improper neutralization of input during web page generation, specifically in the program files src/ce/ve.Ce.ClipboardHandler.Js. This means that malicious scripts can be injected into web pages generated by VisualEditor, potentially allowing attackers to execute arbitrary code in users' browsers.

Impact Analysis

The vulnerability can allow attackers to execute malicious scripts in the context of the affected web application, which can lead to unauthorized actions such as stealing user credentials, session hijacking, or defacing web content. This compromises the security and integrity of the application and its users.

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