WordPress Theme: soledad: CVE-2024-11289: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

The Soledad theme for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 8.5.9 via several functions like penci_archive_more_post_ajax_func, penci_more_post_ajax_func, and penci_more_featured_post_ajax_func. This makes it possible for unauthenticated attackers to include and execute PHP 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 PHP files can be uploaded and included. The exploitability of this is limited to Windows.