SQL injection vulnerability in calendar.php in MyBB (aka MyBulletinBoard) 1.2.5 and earlier allows remote attackers to execute arbitrary SQL commands via the day parameter in a dayview action.
member.php in MyBB (aka MyBulletinBoard), when debug mode is available, allows remote authenticated users to change the password of any account by providing the account's registered e-mail address in a debug request for a dolostpw action, which prints the change password verification code in the debug output.