SQL injection vulnerability in PHPGurukul Apartment Visitors Management System (AVMS) v. 1.0 allows attackers to execute arbitrary SQL statements and to gain RCE.
https://www.exploit-db.com/exploits/50288
https://phpgurukul.com/apartment-visitors-management-system-using-php-and-mysql/
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-38833