knownews.net XSS vulnerability

Vulnerable URL: http://www.knownews.net/link.html?url=http://grist.org/food/drift-catchers-use-citizen-science-to-fight-pesticide-pollution/?utmsource=newsletter%27"--!confirmOPENBUGBOUNTY%3C/script /K/medium=emailterm=Business&TechOct22;campaign=business Details: Description| Value ---|---...