Cross-site scripting (XSS) vulnerability in phpgwapi/js/jscalendar/test.php in EGroupware Enterprise Line (EPL) before 11.1.20110804-1 and EGroupware Community Edition before 1.8.001.20110805 allows remote attackers to inject arbitrary web script or HTML via the lang parameter.
Improper Neutralization of Input During Web Page Generation The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.