SQL injection vulnerability in /model/delete_range_grade.php in campcodes Complete Web-Based School Management System 1.0 allows attacker to execute arbitrary SQL commands via the id parameter.Referenceshttps://github.com/E1CHO/cve_hub/blob/main/Complete%20Web-Based%20School%20Management%20System/Complete%20Web-Based%20School%20Management%20System%20-%20vuln%205.pdfhttps://github.com/E1CHO/cve_hub/blob/main/Complete%20Web-Based%20School%20Management%20System/Complete%20Web-Based%20School%20Management%20System%20-%20vuln%209.pdf