CVE-2013-4567

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-12-13 · updated 2026-06-16

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 a \b (backspace) character in CSS.

Affected products

Wikimedia Foundation MediaWiki: through 1.19.8; 1.19, 1.19-beta_1, 1.19-beta_2, 1.19.0, 1.19.1, 1.19.2 (+16)

References

http://lists.fedoraproject.org/pipermail/package-announce/2013-December/122998.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123011.html
http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.html
http://secunia.com/advisories/57472
http://www.debian.org/security/2014/dsa-2891
http://www.securityfocus.com/bid/63760
https://bugzilla.wikimedia.org/show_bug.cgi?id=55332
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/122998.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123011.html
http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.html
http://secunia.com/advisories/57472
http://www.debian.org/security/2014/dsa-2891

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