The Avada Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 3.11.13. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

The Avada Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcodes in all versions up to, and including, 3.11.11 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Avada (Fusion) Builder plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 3.11.12 via the handle_clone_post() function and the 'fusion_blog' shortcode and due to insufficient restrictions on which posts can be included. This makes it possible for authenticated attackers, with contributor-level access and above, to extract data from password protected, private, or draft posts that they should not have access to.

The Fusion Builder WordPress plugin before 3.6.2, used in the Avada theme, does not validate a parameter in its forms which could be used to initiate arbitrary HTTP requests. The data returned is then reflected back in the application's response. This could be used to interact with hosts on the server's local network bypassing firewalls and access control measures.