Vulnerability in themeum Kirki – Freeform Page Builder, Website Builder & Customizer

[ Description ]Official 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, 6.3.2 via the 'context' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to expose arbitrary users' sensitive profile data — including email address, display name, nicename, registration date, profile image URL, and any string-valued user meta fields such as first name, last name, nickname, description, and custom meta keys — via the REST response. Exploitation requires a published page that uses a Kirki template containing at least one user-type dynamic content block; target user IDs are enumerable via standard WordPress REST endpoints, making the only prerequisite the presence of such a template on the site.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/API/Frontend/Controllers/C…
• plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/API/Frontend/Controllers/F…
• plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/Frontend/Preview/Utils.php
• plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/HelperFunctions.php
• plugins.trac.wordpress.org/changeset/3743904/kirki/trunk/includes/API/Frontend/Controll…
• www.wordfence.com/threat-intel/vulnerabilities/id/1f2fd69f-d432-4eb2-9d28-cfd7dd100e82