Is CVE-2013-4573 being actively exploited?

CVE-2013-4573 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-4573?

CVE-2013-4573 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2013-4573

MEDIUM · CVSS 4.3EPSS 1.2%EU EUVD

Cross-site scripting (XSS) vulnerability in the ZeroRatedMobileAccess extension for MediaWiki 1.19.x before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to inject arbitrary web script or HTML via the "to" parameter to index.php.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-79
EPSS score: 1.2% (67th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-4431)
Published: November 25, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-4431 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki
mediawiki / mediawiki

References

http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.html(Patch)
http://secunia.com/advisories/55754(Vendor Advisory)
https://bugzilla.wikimedia.org/show_bug.cgi?id=55991(Patch)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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