cybershop.fr XSS vulnerability

Vulnerable URL: http://www.cybershop.fr/shoperror.asp?msg="COULD NOT process PayPal payment. Please Contact Admin! Details: Description| Value ---|--- Patched:| No Latest check for patch:| 21.12.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| Unknown / Not...