mindbodygreen.com XSS vulnerability

Vulnerable URL: http://www.mindbodygreen.com/emailsignup-step2.action?emailAddress=" Details: Description| Value ---|--- Patched:| Yes, at Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 4974 VIP website status:| Yes Check mindbodygreen.com SSL connection:| Grade: A...