There is a Cross Site Scripting (XSS) vulnerability in the value-text-o_sms_email_request_message parameters of index.php in PHPJabbers Callback Widget v1.0.
https://www.phpjabbers.com/callback-widget
https://medium.com/%40milfortutz/multiple-vulnerabilities-in-phpjabbers-part-1-6703becb4cd4