Phpjabbers Appointment Scheduler Cross-Site Scripting Vulnerability

Phpjabbers Appointment Scheduler is a Php-based appointment scheduler plugin for planning time and scheduling meetings from Phpjabbers Serbia. PHPJabbers Appointment Scheduler 2.3 is vulnerable to a cross-site scripting vulnerability that originates in the index.php administrative login page (with different request parameters), which can be exploited by remote attackers to inject arbitrary web script or HTML.