Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files resources/src/mediawiki.Api/index.Js.



This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Project Subscriptions

Vendors Products
Wikimedia Subscribe
Mediawiki Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
History

Wed, 01 Jul 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Wikimedia
Wikimedia mediawiki
Vendors & Products Wikimedia
Wikimedia mediawiki

Wed, 01 Jul 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 01 Jul 2026 15:30:00 +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. This vulnerability is associated with program files resources/src/mediawiki.Api/index.Js. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
Title mw.Api.getErrorMessage() may return injected HTML if used without errorformat=html
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-07-01T15:48:38.393Z

Reserved: 2026-06-27T13:32:37.577Z

Link: CVE-2026-58032

cve-icon Vulnrichment

Updated: 2026-07-01T15:48:32.793Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-02T01:00:12Z

Weaknesses