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 WP YouTube Live WordPress plugin before 1.8.3 does not validate, sanitise and escape various of its settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed

The WordPress WP YouTube Live Plugin is vulnerable to Reflected Cross-Site Scripting via POST data found in the ~/inc/admin.php file which allows unauthenticated attackers to inject arbitrary web scripts in versions up to, and including, 1.7.21.