Being the best blogging platform, lots of free as well as premium themes have been developed around WordPress. Besides premium theme, many bloggers are still using beautiful free themes for their WordPress sites. But is your free theme safe for your site?
Probably yes, but perhaps not. Still today many free themes in the market have malicious links and malware integrated with it which could do serious damage as well as hack your WordPress site!
How to Check WordPress Themes for Malware & Malicious Code
However there is a free plugin Theme Authenticity Checker that can check your WordPress theme for any such link.
How to Install Theme Authenticity Checker Plugin
Download Theme Authenticity Checker Plugin from WordPress repository.
Upload it to your plugin directory and activate the plugin.
Go to Appearance > Theme Checker. The plugin will show you whether your theme (s) got any bug or not.
Are you also using free themes for your site? Then install Theme Authenticity Checker plugin and check your theme asap.
Update: I have found another useful plugin which is slightly different from above but it works more inside of the theme to check Malware and Malicious code or bug. The plugin, named as Theme Check is now available at WordPress repository and you can download it for free.
Moreover you might like to install a “Plugin Check” plugin to test all the plugin of your blog as well.