Thread

WordPress: Unauthenticated path traversal leading to conditional RCE

240 points · 132 comments · vntok

tptacek · 1790096527 · focus · HN ↗
These CVSS scores don't mean anything and it would be better for everyone if they stopped showing up in headlines. This is a somewhat situational Wordpress RCE that impacts only a couple themes.
1. vntok · 1790097204 · focus · HN ↗
  > 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: <a href="https://developer.wordpress.org/themes/classic-themes/templates/page-template-files/" rel="nofollow">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/.
  1. dawnerd · 1790099765 · focus · HN ↗
    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.

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