SQL injection vulnerability in class-1 Forum Software 0.24.4 allows remote attackers to execute arbitrary SQL commands and bypass the file extension check via SQL code in the file extension of an uploaded file.
Multiple SQL injection vulnerabilities in Class-1 Forum 0.24.4 and 0.23.2, and Clever Copy with forums installed, allow remote attackers to modify SQL statements via the (1) id parameter to viewattach.php, (2) viewuser_id parameter to users.php, or the (3) id or (4) forum parameter to viewforum.php.