classsystem

Multiple SQL injection vulnerabilities in ClassSystem 2.3 allow remote attackers to execute arbitrary SQL commands via the teacher_id parameter in (1) class/HomepageMain.php and (2) class/HomepageTop.php, and (3) the message_id parameter in class/MessageReply.php.

Unrestricted file upload vulnerability in class/ApplyDB.php in ClassSystem 2.3 allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in class/UploadHomepage/.