A SQL Injection vulnerability exists in openSIS 8.0 when MySQL (MariaDB) is being used as the application database. A malicious attacker can issue SQL commands to the MySQL (MariaDB) database through the index.php username parameter.Referenceshttps://opensis.com/https://github.com/OS4ED/openSIS-Classichttps://github.com/security-n/CVE-2021-39377
