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 WP Maintenance Mode & Coming Soon WordPress plugin before 2.4.5 is lacking CSRF when emptying the subscribed users list, which could allow attackers to make a logged in admin perform such action via a CSRF attack

The WP Maintenance Mode plugin before 2.0.7 for WordPress allows remote authenticated subscriber users to bypass intended access restrictions on changes to plugin settings.

The WP Maintenance Mode plugin before 2.0.7 for WordPress allows remote authenticated "site administrator" users to execute arbitrary PHP code throughout a multisite network.

The WP Maintenance Mode plugin before 2.0.7 for WordPress allows remote authenticated users to discover all subscriber e-mail addresses.

Cross-site request forgery (CSRF) vulnerability in the WP Maintenance Mode plugin before 1.8.8 for WordPress allows remote attackers to hijack the authentication of arbitrary users for requests that modify this plugin's settings.