Dzzoffice Version 2.02.1 is affected by cross-site scripting (XSS) due to a lack of sanitization of input data at all upload functions in webroot/dzz/attach/Uploader.class.php and return a wrong response in content-type of output data in webroot/dzz/attach/controller.php.
A cross-site scripting (XSS) vulnerability in the referer parameter of Dzzoffice 2.02 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.