CVE-2025-67619 HIGH

CVE-2025-67619: WordPress Kids Heaven theme <= 3.2 - PHP Object Injection vulnerability

Vendor Designthemes
Product Kids Heaven
Weakness CWE-502 · Unsafe deserialization
Published January 22, 2026
Last update April 28, 2026

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in designthemes Kids Heaven kids-world allows Object Injection.This issue affects Kids Heaven: from n/a through <= 3.2.

Explanation of Vulnerability in Simple Terms

02Summary

Kids Heaven versions 3.2 and earlier contain a deserialization vulnerability that allows authenticated users to execute arbitrary code on the site. An attacker with low-level access can craft malicious serialized data to trigger code execution. This affects all installations running the vulnerable version range.

What an attacker can do

03Attacker Capabilities

Run their own code on the site with full access to the database and files.

Potential impact on your site

04Site Impact

Any authenticated user can compromise the entire site, steal data, modify content, or take it offline.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account (e.g., subscriber or contributor role).

Key dates

06Disclosure timeline

January 22, 2026 CVE published
April 28, 2026 Record updated