find /path/to/wp-root -name "*.php" -mtime -7 -exec grep -l "eval(base64_decode" {} \;
The theme-compat directory within wp-includes contains files designed to maintain backward compatibility with older themes. As WordPress evolves, certain functions and features may become deprecated or change. The theme-compat directory ensures that themes relying on older functions or methods continue to work by providing fallback support. -KEYWORD-wp-includes Theme-compat Worksec.php