CVE-2013-4303: XSS
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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2013-4303?
CVE-2013-4303 is rated as a moderate severity vulnerability due to its potential for cross-site scripting attacks.
How do I fix CVE-2013-4303?
To fix CVE-2013-4303, upgrade MediaWiki to version 1.19.8, 1.20.7, or 1.21.2 or later.
Who is affected by CVE-2013-4303?
CVE-2013-4303 affects MediaWiki versions prior to 1.19.8, 1.20.7, and 1.21.2 including 1.19.x, 1.20.x, and 1.21.x branch releases.
What type of attack does CVE-2013-4303 facilitate?
CVE-2013-4303 facilitates cross-site scripting (XSS) attacks, allowing attackers to execute scripts in the context of the user's browser.
What components of MediaWiki are affected by CVE-2013-4303?
CVE-2013-4303 specifically affects the includes/libs/IEUrlExtension.php component of MediaWiki's API.