CVE-2026-18347

medium

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/fa1e0bcd-f881-4b01-b802-7cb18a22a07f?source=cve

https://plugins.trac.wordpress.org/changeset?reponame=&old=3629933%40kirki&new=3629933%40kirki

https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/HelperFunctions.php#L1098

https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/Ajax/Users.php#L227

https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/API/Frontend/Controllers/FrontendRESTController.php#L82

https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/API/Frontend/Controllers/FrontendRESTController.php#L42

https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/API/Frontend/Controllers/CollectionController.php#L97

https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/HelperFunctions.php#L1098

https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/Ajax/Users.php#L227

https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/API/Frontend/Controllers/FrontendRESTController.php#L82

https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/API/Frontend/Controllers/FrontendRESTController.php#L42

https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.9/includes/API/Frontend/Controllers/CollectionController.php#L97

Details

Source: Mitre, NVD

Published: 2026-08-16

Updated: 2026-08-16

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00305