CVE-2026-58035

Medium

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.Special.Block/SpecialBlock.Vue.

SeverityMedium

CVSS4.8

Exploit probability—

Product

Mediawiki

PublishedJul 1, 2026

First seenJul 1, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
mediawiki mediawiki	1.46.0	—

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