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 Easy Social Share Buttons plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 1.4.5. 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.

Missing Authorization vulnerability in appscreo Easy Social Share Buttons.This issue affects Easy Social Share Buttons: from n/a through 9.4.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in appscreo Easy Social Share Buttons allows PHP Local File Inclusion.This issue affects Easy Social Share Buttons: from n/a through 9.4.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Appscreo Easy Social Share Buttons allows Reflected XSS.This issue affects Easy Social Share Buttons: from n/a through 9.4.