CVE-2021-45472

EUVD-2021-32238
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 48%
Affected Products (NVD)
VendorProductVersion
mediawikimediawiki
𝑥
≤ 1.37
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mediawiki
bionic
needs-triage
focal
needs-triage
hirsute
ignored
impish
ignored
jammy
needs-triage
kinetic
ignored
lunar
ignored
mantic
ignored
noble
needs-triage
trusty
ignored
xenial
ignored
Common Weakness Enumeration
References
https://gerrit.wikimedia.org/r/q/I37ece1dfdc80d38055067c9c4fa73ba591acd8bd
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7JNQA53K675TQBBJPZRAG5ZT6XES3IS/
https://phabricator.wikimedia.org/T297570
https://gerrit.wikimedia.org/r/q/I37ece1dfdc80d38055067c9c4fa73ba591acd8bd
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7JNQA53K675TQBBJPZRAG5ZT6XES3IS/
https://phabricator.wikimedia.org/T297570