The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The Protect WP Admin WordPress plugin before 4.0 discloses the URL of the admin panel via a redirection of a crafted URL, bypassing the protection offered.

The Protect WP Admin WordPress plugin before 3.6.2 does not check for authorisation in the lib/pwa-deactivate.php file, which could allow unauthenticated users to disable the plugin (and therefore the protection offered) via a crafted request