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 Front End PM WordPress plugin before 11.4.3 does not block listing the contents of the directories where it stores attachments to private messages, allowing unauthenticated visitors to list and download private attachments if the autoindex feature of the web server is enabled.