CVE-2018-6330
Laravel 5.4.15 is vulnerable to Error based SQL injection in save.php via dhx_user and dhx_version parameters.
Date published : 2019-03-28
http://www.itblog.gbonanno.de/cve-2018-6330-laravel-sql-injection/
https://github.com/laravel/framework/blob/5.4/CHANGELOG-5.4.md