Vulnerability advisory

CVE-2026-107762

Research by Md. Moniruzzaman Prodhan October 17, 2026
Overview

Summary

The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 6.3.2 via the 'context' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to expose arbitrary users' sensitive profile data — including email address, display name, nicename, registration date, profile image URL, and any string-valued user meta fields such as first name, last name, nickname, description, and custom meta keys — via the REST response. Exploitation requires a published page that uses a Kirki template containing at least one user-type dynamic content block; target user IDs are enumerable via standard WordPress REST endpoints, making the only prerequisite the presence of such a template on the site.

Risk profile

CVSS assessment

7.5 · H I G H
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
N E T W O R K
Complexity
L O W
Privileges
N O N E
User interaction
N O N E
Scope
U N C H A N G E D
Confidentiality
H I G H
Integrity
N O N E
Availability
N O N E
Classification

Weaknesses

  • Authorization Bypass Through User-Controlled Key CWE-639
Further reading

References

6 sources
  1. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/API/Frontend/Controllers/CollectionController.php#L179
  2. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/API/Frontend/Controllers/FrontendRESTController.php#L64
  3. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/Frontend/Preview/Utils.php#L466
  4. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.2/includes/HelperFunctions.php#L1152
  5. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3743904/kirki/trunk/includes/API/Frontend/Controllers/CollectionController.php
  6. www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/1f2fd69f-d432-4eb2-9d28-cfd7dd100e82?source=cve