Technically yes, but it’s rarely worth the effort. Hidden backdoors are easy to miss. Replacing the theme entirely is safer.
If the answer is yes—and it should be—then do the right thing. Pay for your theme, support the developers who work hard to create them, and build your Opencart store on a foundation of security and integrity. Your future self, your customers, and your bank account will thank you. Opencart Nulled Themes
Premium themes require regular updates to stay compatible with new OpenCart versions (like OpenCart 4.x ) and to patch security bugs. Compatibility Breaks: Technically yes, but it’s rarely worth the effort
Business and trust consequences