The Post Grid and Gutenberg Blocks – ComboBlocks plugin for WordPress is vulnerable to Unauthenticated Hook Injection in versions 2.2.32 to 2.3.1 via several functions in the ~/includes/blocks/form-wrap/function.php file. This makes it possible for unauthenticated attackers to execute actions with hooks in WordPress, granted no other security controls are present in the function.
Analyzing vulnerability vectors…