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CVE-2013-4567

4.3 · MEDIUM

Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) at…

Published Dec 13, 2013mediawikiEPSS 1.35%

Overview

CVE-2013-4567 is a medium-severity vulnerability affecting mediawiki mediawiki. It was published on December 13, 2013 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a \b (backspace) character in CSS.

Remediation

Check the references section for vendor advisories and patches from mediawiki. Update mediawiki to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
mediawikimediawiki0Affected

References

Reflists.fedoraproject.org/pipermail/package-announce/2013-December/122998.htmlReflists.fedoraproject.org/pipermail/package-announce/2013-December/123011.htmlReflists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.htmlRefsecunia.com/advisories/57472Refwww.debian.org/security/2014/dsa-2891Refwww.securityfocus.com/bid/63760Refbugzilla.wikimedia.org/show_bug.cgi?id=55332Reflists.fedoraproject.org/pipermail/package-announce/2013-December/122998.htmlReflists.fedoraproject.org/pipermail/package-announce/2013-December/123011.htmlReflists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.html

How CyberStrike helps

Frequently asked questions

What is CVE-2013-4567?

CVE-2013-4567 is a medium-severity vulnerability affecting mediawiki mediawiki. It was published on December 13, 2013 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2013-4567?

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-4567?

Check the references section for vendor advisories and patches from mediawiki. Update mediawiki to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-4567?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-4567 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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