CVE-2026-58028

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation CentralAuth. This vulnerability is associated with program files includes/Api/ApiFormatBase.Php, includes/Api/ApiHelp.Php, includes/ResourceLoader/Module.Php, includes/Hooks/Handlers/PageDisplayHookHandler.Php, includes/LogFormatter/PermissionChangeLogFormatter.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9; CentralAuth: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Score

CVSS 3.1 5.4 Medium

Status

Analyzed - c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

Published

2026-07-01

Last modified

2026-07-01

Weaknesses

CWE-79

Affected products

• Mediawiki (Mediawiki)
• Centralauth (Wikimedia Foundation)
• Mediawiki (Wikimedia Foundation)

References

• https://phabricator.wikimedia.org/T422306