CVE-2026-18347

Vulnerability Description

The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.1.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with custom-level access and above, to read arbitrary user metadata and sensitive user record fields — including email address, assigned roles, registration date, and any user_meta values — belonging to any WordPress user including administrators, by supplying a target user ID with a user-type context to the frontend collection endpoint.

CVSS Score

Related Weaknesses (CWE)

References

• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/API/Fronten
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/API/Fronten
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/API/Fronten
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/Ajax/Users.
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/HelperFunct
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/API/Fronten
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/API/Fronten
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/API/Fronten
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/Ajax/Users.
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/HelperFunct
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3629933%40kirki&new=3
• https://www.wordfence.com/threat-intel/vulnerabilities/id/fa1e0bcd-f881-4b01-b80