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CVE-2026-3596

9.8 · CRITICAL

The Riaxe Product Customizer plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.1.2.

Published Apr 16, 2026CWE-862EPSS 0.84%

Overview

CVE-2026-3596 is a critical-severity vulnerability. It was published on April 16, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L183Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L5045Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L5046Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L5047Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/tags/2.1.2/riaxe-product-designer.php#L5058Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L183Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L5045Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L5046Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L5047Refplugins.trac.wordpress.org/browser/riaxe-product-customizer/trunk/riaxe-product-designer.php#L5058

How CyberStrike helps

Frequently asked questions

What is CVE-2026-3596?

CVE-2026-3596 is a critical-severity vulnerability. It was published on April 16, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-3596?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-3596?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-3596?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-3596 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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