CVE-2013-4303 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Reference

http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.html http://seclists.org/oss-sec/2013/q3/553 http://www.securityfocus.com/bid/62194 https://bugzilla.wikimedia.org/show_bug.cgi?id=52746 https://exchange.xforce.ibmcloud.com/vulnerabilities/86897

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1