HongCMS 3.0.0 allows arbitrary file deletion via a ../ in the file parameter to admin/index.php/database/ajax?action=delete, a similar issue to CVE-2018-16774. (If the attacker deletes config.php and visits install/index.php, they can reinstall the product.)
An issue was discovered in HongCMS 3.0.0. There is an Arbitrary Script File Upload issue that can result in PHP code execution via the admin/index.php/template/upload URI.
An issue wan discovered in admin\controllers\database.php in HongCMS 3.0.0. There is a SQL Injection vulnerability via an admin/index.php/database/operate?dbaction=emptytable&tablename= URI.