CVE-2026-12122 MEDIUM

CVE-2026-12122: Kirki <= 6.0.11 - Missing Authorization to Unauthenticated Sensitive Information Exposure via kirki_post_apis_nopriv AJAX Action

Vendor Themeum
Product Kirki – Freeform Page Builder, Website Builder & Customizer
Weakness CWE-862 · Missing authorization
Published July 2, 2026
Last update July 2, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/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 Sensitive Information Exposure in all versions up to, and including, 6.0.11 via the get_single_symbol. This makes it possible for unauthenticated attackers to extract the full builder metadata and rendered HTML of any kirki_symbol post — including unpublished drafts — by supplying a sequential WordPress post ID.

Explanation of Vulnerability in Simple Terms

02Summary

Kirki Page Builder versions up to 6.0.11 lack proper authorization checks, allowing unauthenticated attackers to read sensitive information. The vulnerability requires only network access and no user interaction. Site administrators should update to a version newer than 6.0.11 to prevent unauthorized data exposure.

What an attacker can do

03Attacker Capabilities

Read sensitive information without logging in.

Potential impact on your site

04Site Impact

Unauthenticated visitors can access data they shouldn't see, potentially exposing site configuration or user information.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

July 2, 2026 CVE published

Related vulnerabilities

08Related CVE