Subrion 4.2.1 has a remote command execution vulnerability in the backend.
SQL injection vulnerability in Subrion CMS before 3.3.3 allows remote authenticated users to execute arbitrary SQL commands via modified serialized data in a salt cookie.
/panel/uploads in Subrion CMS 4.2.1 allows remote attackers to execute arbitrary PHP code via a .pht or .phar file, because the .htaccess file omits these.
A SQL injection vulnerability exists in Subrion CMS v4.2.1 in the visual-mode.