Medium severity6.1NVD Advisory· Published Dec 11, 2019· Updated Jun 16, 2026
CVE-2013-4303
CVE-2013-4303
Description
includes/libs/IEUrlExtension.php in the MediaWiki API in MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 does not properly detect extensions when there are an even number of "." (period) characters in a string, which allows remote attackers to conduct cross-site scripting (XSS) attacks via the siprop parameter in a query action to wiki/api.php.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Range: 1.19.x before 1.19.8
Patches
Vulnerability mechanics
References
5- lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.htmlnvdMailing ListPatchVendor Advisory
- bugzilla.wikimedia.org/show_bug.cginvdExploitIssue TrackingPatchVendor Advisory
- seclists.org/oss-sec/2013/q3/553nvdMailing ListThird Party Advisory
- www.securityfocus.com/bid/62194nvdThird Party AdvisoryVDB Entry
- exchange.xforce.ibmcloud.com/vulnerabilities/86897nvdThird Party AdvisoryVDB Entry
News mentions
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