W3Schools XSS vulnerability Found by the youngest Security Researcher

A Pakistani Student “Ali Hasan Ghauri” (AHPT) who is 14 years old, The Youngest Security Researcher has discovered XSS (Cross-Site Scripting) Vulnerability on http://www.w3schools.com main site. Below is the Screen Shot of XSS.
The Youngest Pakistani Security Researcher “Ali Hasan Ghauri” (AHPT) also Found Vulnerabilities on Big Tech Sites on Skype , Adobe, Asia Cnet, Yellowpages, visualstudiomagazine ,Filehippo ,CnetDownloads, US.Acer, W3Schools, Hamariweb & Many More.
Above just polpular sites are mentioned But The Youngest Security Researcher “Ali Hasan Ghauri” (AHPT) has found 250+ Vulnerable Sites & reported to them by giving the Security as well .
About W3Schools:
W3Schools is a web developer information website, with tutorials and references relating to web development topics such as HTML, CSS, JavaScript, PHP, and SQL.
XSS flaw on W3Schools fixed now.