Multiple unspecified vulnerabilities in MyBulletinBoard (MyBB) before 1.0 have unknown impact and attack vectors, a different set of vulnerabilities than those identified by CVE-2005-4199.
Multiple cross-site scripting (XSS) vulnerabilities in MyBulletinBoard (MyBB) 1.0 PR2 Rev 686 allow remote attackers to inject arbitrary web script or HTML via (1) the subject field when creating a new thread and (2) information passed to the Reputation system.