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 XML Sitemap & Google News plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 5.4.8 via the 'feed' parameter. This makes it possible for unauthenticated attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

Stored Cross-Site Scripting (XSS) vulnerability in Andrea Pernici News Sitemap for Google plugin <= 1.0.16 on WordPress, attackers must have contributor or higher user role.