The WPeMatico RSS Feed Fetcher plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the wpematico_import_settings function in all versions up to, and including, 2.8.24. This makes it possible for authenticated attackers, with subscriber-level access and above, to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access.

The WPeMatico RSS Feed Fetcher plugin for WordPress contains a missing capability check on the wpematico_import_settings function. This vulnerability affects all versions up to and including 2.8.24. Authenticated attackers with subscriber-level access or above can exploit this flaw to modify arbitrary WordPress site options. The vulnerability can be leveraged to change the default registration role to administrator and enable open user registration. This effectively allows attackers to create administrator-level accounts and gain full control of the WordPress site. The vulnerability is classified as an unauthorized data modification issue leading to privilege escalation. A patch has been committed to the plugin repository addressing the missing capability check.