Cross-site scripting (XSS) vulnerability in the Users module in the Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
SQL injection vulnerability in userbarsettings.php in the Userbar plugin 2.2 for MyBB Forum allows remote attackers to execute arbitrary SQL commands via the image2 parameter.