CVE-2021-45472

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CVSS 3.1

6.1 medium

EPSS

<1%p60

Published

Dec 24, 2021 (Dec 24, 2021)

Modified

Jun 17, 2026

Description

In MediaWiki through 1.37, XSS can occur in Wikibase because an external identifier property can have a URL format that includes a $1 formatter substitution marker, and the javascript: URL scheme (among others) can be used.

Vendors: mediawiki fedoraproject
Products: mediawiki, fedora
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (1.0%)

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