Cross site scripting vulnerability issue

Hello.
I got a notice from my webhosting provider about “Cross site scripting vulnerability” issue. I checked it and it says as below;

=====================================================
URL:https://capcomn.com/smartforum/new/young-nord-iona/?=1&lang=ar&yop-poll-nonce-13_yp5430e6c232ae6=b16a448363&yop-poll-n
once-20_yp5430e06140997=b3bdf3d560&yop-poll-nonce-21_yp5430df07ea7ba=3b0e560ddb&yop-poll-nonce-2_yp5430e472189f7=8830866f1
0&yop_poll_answer=1&yop_poll_other_answer=1&yop_poll_tr_id=1
Cross site scripting vulnerability found in args:,lang,yop-poll-nonce-13_yp5430e6c232ae6,yop-poll-nonce-20_yp5430e06140997,yop-poll-nonce-21_yp5430df07ea7ba,yop-poll-nonce-2_yp543
0e472189f7,yop_poll_answer,yop_poll_other_answer,yop_poll_tr_id
=======================================================

It looks like has a problem with Transposh or Yop Poll plugin. Please let me know if it caused my web site and how to solve it.
Thanks.

https://wordpress.org/plugins/transposh-translation-filter-for-wordpress/