The Bulk Page Generator – LPagery plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.1.0 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to create, modify, and delete LPagery-managed WordPress pages and bulk page-generation processes that are otherwise restricted to administrators. On default fresh installations where Freemius has not been opted into, the AES-256-CBC key used to validate Bearer tokens collapses to the publicly known SHA-256 hash of an empty string, making the token entirely forgeable by any authenticated user.
https://plugins.trac.wordpress.org/browser/lpagery/tags/3.1.1
https://plugins.trac.wordpress.org/browser/lpagery/tags/3.1.0/src/suite/TokenValidator.php#L30
https://plugins.trac.wordpress.org/browser/lpagery/tags/3.1.0/src/suite/SuiteRestApi.php#L416
https://plugins.trac.wordpress.org/browser/lpagery/tags/3.1.0/src/io/hooks/AdminMenuHooks.php#L91