Description The Apollo13 Framework Extensions plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.9.1. This is due to missing or incorrect nonce validation on the a13fe_nava_add_post and a13fe_nava_delete_post functions. This makes it possible for unauthenticated attackers to add and delete posts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.