Spectra Pro <= 1.1.5 - Authenticated (Author+) Privilege Escalation

The Spectra Pro plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 1.1.5. This is due to the plugin allowing lower-privileged users to create registration forms and set the default role to administrator This makes it possible for authenticated attackers, with author-level access and above, to create administrator-level accounts.