CVE-2013-2031

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-11-18 · updated 2026-06-16
Weakness: CWE-79

Description

MediaWiki before 1.19.6 and 1.20.x before 1.20.5 allows remote attackers to conduct cross-site scripting (XSS) attacks, as demonstrated by a CDATA section containing valid UTF-7 encoded sequences in a SVG file, which is then incorrectly interpreted as UTF-8 by Chrome and Firefox.

Affected products

gentoo Linux: all versions
Wikimedia Foundation MediaWiki: through 1.19.5; 1.1.0, 1.10.0, 1.10.0-rc1, 1.10.0-rc2, 1.10.1, 1.10.2 (+63)

References

http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105784.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105825.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106293.html
http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-April/000129.html
http://secunia.com/advisories/55433
http://secunia.com/advisories/57472
http://security.gentoo.org/glsa/glsa-201310-21.xml
http://www.debian.org/security/2014/dsa-2891
http://www.openwall.com/lists/oss-security/2013/05/01/2
http://www.securityfocus.com/bid/59594
https://bugzilla.wikimedia.org/show_bug.cgi?id=47304
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105784.html

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