CVE-2026-0671
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-08

Last updated on: 2026-01-15

Assigner: wikimedia-foundation

Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - UploadWizard extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - UploadWizard extension: 1.45, 1.44, 1.43, 1.39.
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Meta Information
Published
2026-01-08
Last Modified
2026-01-15
Generated
2026-06-16
AI Q&A
2026-01-08
EPSS Evaluated
2026-06-14
NVD
CVE-2026-0671
EUVD
EUVD-2026-1448
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
wikimedia mediawiki-extensions-uploadwizard 1.39
wikimedia mediawiki-extensions-uploadwizard 1.43
wikimedia mediawiki-extensions-uploadwizard 1.44
wikimedia mediawiki-extensions-uploadwizard 1.45
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 MediaWiki UploadWizard extension. It occurs due to improper neutralization of input during web page generation, which means that malicious scripts can be injected and executed in the context of the affected web pages.

Impact Analysis

This vulnerability can allow attackers to execute malicious scripts in users' browsers when they visit affected pages. This can lead to theft of user credentials, session hijacking, defacement, or other malicious actions performed on behalf of the user.

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