Comment by vntok
7 hours ago
> This is a somewhat situational Wordpress RCE that impacts only a couple themes. reply
That is dangerously incorrect, a whole lot of themes are vulnerable. The main pre-condition, "presence of a top-level directory named 'page-xxx' like 'page-templates' in the theme's directory" is actually an official recommendation in the WordPress documentation.
See here: https://developer.wordpress.org/themes/classic-themes/templa...
> As discussed in Organizing Theme Files, WordPress can recognize page templates stored in the theme’s root folder or in a first-level subdirectory of the theme folder. *The page-templates/ folder is a common convention* for organizing global page templates, but it is not required. Page templates can also be stored in other first-level subdirectories, such as templates/ or page_templates/.
I'm not sure I understand. That's the main pre-condition... to include an arbitrary PHP that is already in the server.
On a fresh WP install, a random user can't upload PHP files. Normally you don't even need to allow random users to register an account since avatars on comments come from gravatar anyway.
Yeah not sure why you’re being downvoted when the built in themes are vulnerable as is the default docker image pre php8.5 which a lot of people use as a base and I bet a lot of hosting providers use as well behind the scenes.