Description
Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via certain non-ASCII characters in CSS, as demonstrated using variations of "expression" containing (1) full width characters or (2) IPA extensions, which are converted and rendered by Internet Explorer.
References (8)
Core 8
Core References
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/57472
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2014/dsa-2891
Issue Tracking x_refsource_misc
https://bugzilla.wikimedia.org/attachment.cgi?id=13452&action=diff
Various Sources mailing-list
x_refsource_mlist
http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123011.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/63761
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/122998.html
Issue Tracking x_refsource_confirm
https://bugzilla.wikimedia.org/show_bug.cgi?id=55332
Scores
EPSS
0.0050
EPSS Percentile
66.0%
Details
Status
published
Products (21)
mediawiki/mediawiki
1.20
mediawiki/mediawiki
1.20.1
mediawiki/mediawiki
1.20.2
mediawiki/mediawiki
1.20.3
mediawiki/mediawiki
1.20.4
mediawiki/mediawiki
1.20.5
mediawiki/mediawiki
1.20.6
mediawiki/mediawiki
1.20.7
mediawiki/mediawiki
1.21
mediawiki/mediawiki
1.21.1
... and 11 more
Published
Dec 13, 2013
Tracked Since
Feb 18, 2026