The Sneeit Framework plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 8.3 via the sneeitarticlespaginationcallback() function. This is due to the function accepting user input and then passing that through calluserfunc(). This makes it possible for unauthenticated attackers to execute code on the server which can be leveraged to inject backdoors or, for example, create new administrative user accounts.