CVE-2026-18347 MEDIUM

CVE-2026-18347: Kirki <= 6.1.1 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Disclosure via 'context' Parameter

Vendor Themeum
Product Kirki – Freeform Page Builder, Website Builder & Customizer
Weakness CWE-862 · Missing authorization
Published August 16, 2026
Last update August 16, 2026

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

Kirki Page Builder versions up to 6.1.1 fail to properly check user permissions before allowing access to certain administrative functions. A logged-in user with low privileges can read sensitive information they should not have access to. Update to a version newer than 6.1.1 to resolve this issue.

What an attacker can do

03Attacker Capabilities

Read sensitive site data they lack permission to access.

Potential impact on your site

04Site Impact

Unauthorized users can view restricted information, potentially exposing site configuration or other users' data.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site.

Key dates

06Disclosure timeline

August 16, 2026 CVE published

Related vulnerabilities

08Related CVE