A vulnerability in SP Page Builder for Joomla allows unauthenticated users to upload arbitrary files, ultimately resulting in the upload and execution of PHP code.
Joomla Extension - joomshaper.com - Unauthenticated comment creation in SP Page Builder < 6.8.0 - An unauthenticated attacker can create comments on instances with disabled guest commenting by overriding the setting in question with user supplied input.