=============================================================================== | | ____ _ __ ___ __ __/ / /__ ___ ______ ______(_) /___ __ / _ \/ // / / (_-</ -_) __/ // / __/ / __/ // / /_//_/\_,_/_/_/___/\__/\__/\_,_/_/ /_/\__/\_, / /___/ team PUBLIC SECURITY ADVISORY | | =============================================================================== TITLE ===== Quick Contact Form - Persistent Cross Site Scripting Vulnerability AUTHOR ====== Zy0d0x DATE ==== 10/06/2013 VENDOR ====== Quick Plugins - http://quick-plugins.com/ AFFECTED PRODUCT ================ Quick Contact Form Wordpress Plugin Version 6.0 possibly earlier VULNERABILITY CLASS =================== Cross-Site Scripting DESCRIPTION =========== Quick Contact Form suffers from a persistent Cross-Site Scripting vulnerability due to a lack of input validation and output sanitization of the qcfname4 paramater. Other input fields are also effective to reflective cross site scripting. PROOF OF CONCEPT ================ Enter the following into the field where Quick Contact Form requests a Message. --- SNIP --- "><script>alert(String.fromCharCode(90,121,48,100,48,120))</script>< --- SNIP --- If the message has been sent successfully a alert diolog will apear containing Zy0d0x when an user checks there message in the dashboard. IMPACT ====== An attacker could potentially hijack session authentication tokes of remote users and leverage the vulnerability to increase the attack vector to the underlying software and operating system of the victim. THREAT LEVEL ============ High STATUS ====== Fixed update to version 6.1 DISCLAIMER ========== nullsecurity.net hereby emphasize, that the information which is published here are for education purposes only. nullsecurity.net does not take any responsibility for any abuse or misusage!