CVE-2012-4377

Severity: medium (CVSS 6.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-10-26 · updated 2026-06-16
Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.18.5 and 1.19.x before 1.19.2 allows remote attackers to inject arbitrary web script or HTML via a File: link to a nonexistent image.

Affected products

Wikimedia Foundation MediaWiki: through 1.18.4; 1.19.0, 1.19.1

References

http://www.openwall.com/lists/oss-security/2012/08/31/10
http://www.openwall.com/lists/oss-security/2012/08/31/6
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330
https://bugzilla.redhat.com/show_bug.cgi?id=853409
https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html
https://phabricator.wikimedia.org/T41700
http://www.openwall.com/lists/oss-security/2012/08/31/10
http://www.openwall.com/lists/oss-security/2012/08/31/6
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330
https://bugzilla.redhat.com/show_bug.cgi?id=853409
https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html
https://phabricator.wikimedia.org/T41700

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