Medium severity6.1NVD Advisory· Published Oct 26, 2017· Updated Jun 16, 2026

CVE-2012-4377

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

MediaWiki/Mediawiki4 versions
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*range: <=1.18.4
- cpe:2.3:a:mediawiki:mediawiki:1.19.0:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.19.1:*:*:*:*:*:*:*
- (no CPE)range: <1.18.5, <1.19.2
Wikimedia Foundation/Mediawikillm-fuzzy
Range: <1.18.5, <1.19.2

Patches

Vulnerability mechanics

References

www.openwall.com/lists/oss-security/2012/08/31/10nvdMailing ListPatchThird Party Advisory
www.openwall.com/lists/oss-security/2012/08/31/6nvdMailing ListPatchThird Party Advisory
bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatch
lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.htmlnvdPatchVendor Advisory
bugs.debian.org/cgi-bin/bugreport.cginvdIssue TrackingThird Party Advisory
phabricator.wikimedia.org/T41700nvdMailing ListVendor Advisory

News mentions

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cvss	0.397
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000