Cross-site scripting (XSS) vulnerability in archive/index.php/forum-4.html in MyBB (aka MyBulletinBoard) allows remote attackers to inject arbitrary web script or HTML via the navbits[][name] parameter.
Cross-site scripting (XSS) vulnerability in attachment.php in MyBulletinBoard (MyBB) 1.1.7 and possibly other versions allows remote attackers to inject arbitrary web script or HTML via a GIF image that contains URL-encoded Javascript, which is rendered by Internet Explorer.
Cross-site scripting (XSS) vulnerability in inc/functions_post.php in MyBB (aka MyBulletinBoard) 1.10 allows remote attackers to inject arbitrary web script or HTML via a JavaScript event in a BBCode img tag. NOTE: the email vector is already covered by CVE-2006-1625, although it might stem from the same core issue.