CVE-2019-18344: Sourcecodester Online Grading System 1.0 is vulnerable to unauthenticated SQL injection and can allow remote attackers t

Sourcecodester Online Grading System version 1.0 has a critical security flaw called SQL injection (a technique where attackers insert malicious database commands into user inputs). Attackers can exploit this vulnerability without needing to log in by targeting specific input fields like student ID or class ID, allowing them to run unauthorized commands on the system's database.