CVE-2026-0671 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Mediawiki	Mediawiki
Wikimedia	Mediawiki-uploadwizard Extension

No data.

No data.

References

Link	Providers
https://gerrit.wikimedia.org/r/q/I16de2211594ea9a686868ad7789f9879bf981fa1
https://phabricator.wikimedia.org/T407157

History

Fri, 09 Jan 2026 13:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mediawiki Mediawiki mediawiki Wikimedia Wikimedia mediawiki-uploadwizard Extension
Vendors & Products		Mediawiki Mediawiki mediawiki Wikimedia Wikimedia mediawiki-uploadwizard Extension

Thu, 08 Jan 2026 21:15:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 08 Jan 2026 16:30:00 +0000

Type	Values Removed	Values Added
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.
Title		Multiple stored i18n/message-key XSSes in UploadWizard
Weaknesses		CWE-79
References		https://gerrit.wikimedia.org/r/q/I16de2211594ea9a686868ad7789f9879bf981fa1 https://phabricator.wikimedia.org/T407157

MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published: 2026-01-08T16:21:24.207Z

Updated: 2026-01-08T20:13:46.101Z

Reserved: 2026-01-07T16:35:05.767Z

Link: CVE-2026-0671

Vulnrichment

Updated: 2026-01-08T20:13:40.705Z

NVD

Status : Awaiting Analysis

Published: 2026-01-08T17:15:50.240

Modified: 2026-01-08T21:15:43.920

Link: CVE-2026-0671

Redhat

No data.

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