The WP Image Uploader plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the gky_image_uploader_main_function() function in all versions up to, and including, 1.0.1. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).

The WP Image Uploader plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.1. This is due to missing or incorrect nonce validation on the gky_image_uploader_main_function() function. This makes it possible for unauthenticated attackers to delete arbitrary files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The WP Image Uploader plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'file' parameter in all versions up to, and including, 1.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

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.