WordPress MU 'wp-includes/wpmu-functions.php' Cross-Site Scripting Vulnerability
26 Apr. 2012
Summary
Cross-site scripting (XSS) vulnerability in the choose_primary_blog function in wp-includes/wpmu-functions.php in WordPress MU (WPMU) before 2.7 allows remote attackers to inject arbitrary web script or HTML via the HTTP Host header.
WordPress MU is prone to a cross-site scripting vulnerability because the application fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may help the attacker steal cookie-based authentication credentials and launch other attacks.
Vendor Status:
Wordpress had issues an update for this Vulnerability