Description
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 6.0.14 via the 'context' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to read the full title, content, and excerpt of any WordPress post — including drafts, pending, privately published, password-protected, and trashed posts — regardless of author, by supplying an arbitrary post ID via the context parameter alongside an attacker-controlled block template.
References
https://www.wordfence.com/threat-intel/vulnerabilities/id/84f65255-f710-44f9-9f77-61776a40abae?source=cve
https://plugins.trac.wordpress.org/changeset?reponame=&old=3617070%40kirki&new=3617070%40kirki
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/API/Frontend/Controllers/FrontendRESTController.php#L39
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/API/Frontend/Controllers/CollectionController.php#L33
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/API/Frontend/Controllers/CollectionController.php#L117
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.1/includes/API/Frontend/Controllers/FrontendRESTController.php#L39
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.1/includes/API/Frontend/Controllers/CollectionController.php#L33
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.1/includes/API/Frontend/Controllers/CollectionController.php#L117
