cPanel and its ecosystem receive frequent security patches and feature updates. Vulnerability Gap
That being said, here are some popular cPanel nulled scripts that offer a wide range of features: cpanel nulled script better
If the cost of cPanel is the issue, there are much better (and safer) ways to manage your server: cPanel and its ecosystem receive frequent security patches
An open-source panel powered by OpenLiteSpeed, great for performance. great for performance.