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Vulnerability record · CVE-2013-2031 · published 18 November 2013

CVE-2013-2031: Gentoo linux cross-site scripting vulnerability

Gentoo · Linux

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.

4.3 CVSS 2.0 Medium EPSS 2.5% · top 15.9% CWE-79 · Cross-site scripting
4.3CVSS 2.0 base score
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
22References
16 Jun 2026Last modified by NVD

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.

AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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 Patch
http://secunia.com/advisories/55433 Vendor Advisory
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
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 Patch
http://secunia.com/advisories/55433 Vendor Advisory
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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2013-2031), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.