CVE-2013-6451

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-01-28 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in MediaWiki 1.19.9 before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 allows remote attackers to inject arbitrary web script or HTML via unspecified CSS values.

Affected products

Wikimedia Foundation MediaWiki: from 1.19.9 before 1.19.10; from 1.20.0 before 1.21.4; from 1.22.0 before 1.22.1 — fixed in 1.19.10, 1.21.4, 1.22.1

How to fix

Upgrade to a fixed version: Wikimedia Foundation MediaWiki 1.19.10, 1.21.4, 1.22.1. Check the vendor advisory for mitigations.

References

http://lists.wikimedia.org/pipermail/mediawiki-announce/2014-January/000138.html
http://lists.wikimedia.org/pipermail/mediawiki-announce/2014-January/000138.html

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