CVE-2026-3596 CRITICAL

CVE-2026-3596: Riaxe Product Customizer <= 2.1.2 - Missing Authorization to Unauthenticated Arbitrary Options Update to Privilege Escalation via 'install-imprint' AJAX Action

Vendor Imprintnext
Product Riaxe Product Customizer
Weakness CWE-862 · Missing authorization
Published April 16, 2026
Last update April 16, 2026

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

The Riaxe Product Customizer plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.1.2. The plugin registers an unauthenticated AJAX action ('wp_ajax_nopriv_install-imprint') that maps to the ink_pd_add_option() function. This function reads 'option' and 'opt_value' from $_POST, then calls delete_option() followed by add_option() using these attacker-controlled values without any nonce verification, capability checks, or option name allowlist. This makes it possible for unauthenticated attackers to update arbitrary WordPress options, which can be leveraged for privilege escalation by enabling user registration and setting the default user role to administrator.

Explanation of Vulnerability in Simple Terms

02Summary

Riaxe Product Customizer versions 2.1.2 and earlier lack proper authorization checks, allowing unauthenticated attackers to read, modify, or delete data without restriction. The vulnerability affects all confidentiality, integrity, and availability of the application. No user interaction is required; exploitation occurs over the network.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete any data in the application without authentication.

Potential impact on your site

04Site Impact

Complete compromise of data confidentiality, integrity, and availability if this product is deployed on your site.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

April 16, 2026 CVE published
April 16, 2026 Record updated

Related vulnerabilities

08Related CVE