The Styler for Ninja Forms plugin for WordPress is vulnerable to unauthorized modification of data that can lead to a denial of service due to a missing capability check on the deactivate_license function in all versions up to, and including, 3.3.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary option values on the WordPress site. This can be leveraged to delete an option that would create an error on the site and deny service to legitimate users. Note: This issue can also be used to add arbitrary options with an empty value.

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.