CVE-2026-12472 MEDIUM

CVE-2026-12472: Kirki <= 6.0.11 - Missing Authorization to Unauthenticated Arbitrary Email Content Injection (Mail Relay / Phishing) via 'emailBody' and 'emailSubject' Parameters

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

CVSS base score

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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, 6.0.11. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to send arbitrary HTML-injected emails — including phishing messages embedding a real, valid WordPress password-reset URL for the targeted user — to any registered user via the site's own mail server, abusing its SPF/DKIM reputation. The attacker-controlled emailSubject parameter is passed to wp_mail() with only sanitize_text_field() applied, while emailBody 'text' items are concatenated raw into the HTML email body with no escaping, and 'chip' items can include the genuine WordPress password-reset link for the targeted account.

Explanation of Vulnerability in Simple Terms

02Summary

Kirki Page Builder versions up to 6.0.11 lack proper authorization checks, allowing unauthenticated attackers to modify site content. 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 changes to pages and customizer settings.

What an attacker can do

03Attacker Capabilities

Modify page content and customizer settings without authentication.

Potential impact on your site

04Site Impact

Attackers can alter your site's pages and design settings without logging in.

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

CVE-2026-57660 WordPress Booking and Rental Manager plugin <= 2.7.1 - Broken Access Control vulnerability CVE-2026-57339 WordPress Business Directory plugin <= 6.4.23 - Broken Access Control vulnerability CVE-2026-13459 JetFormBuilder <= 3.6.3 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via 'context' Parameter CVE-2026-57730 WordPress Flatsome theme <= 3.20.5 - Broken Access Control vulnerability CVE-2026-12113 Appointment Booking Calendar <= 1.4.02 - Missing Authorization to Authenticated (Contributor+) Sensitive Information Disclosure