Facebook HTML Injection

03:13 Posted by Ali Hassan Ghori ,
Found a Bug in Facebook  Hello, I discovered a Html Injection in m.facebook.com. Here is a Vulnerable Page.   Link: https://m.facebook.com/pages/boosted_post/?pid=154728514671464&sid=317138311763816&error=Please+enter+a+valid+credit%2Fdebit+card+number.   I changed...