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CVE-2026-103889

9.8 · CRITICAL

The 3D Product configurator for WooCommerce plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.16.2 via the 'xpv_image' parameter parameter.

Published Oct 10, 2026CWE-434EPSS 1.01%

Overview

CVE-2026-103889 is a critical-severity vulnerability. It was published on October 10, 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 3D Product configurator for WooCommerce plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.16.2 via the 'xpv_image' parameter parameter. This is due to missing authentication and nonce checks on the wp_loaded handler combined with no sanitization of the xpv_image POST parameter before it is echoed unescaped into a Dompdf-rendered HTML template with PHP execution enabled. This makes it possible for unauthenticated attackers to execute code on the server. The only nonce and authentication check in the handler is entirely enclosed in a block comment with no replacement, making the endpoint reachable via a single unauthenticated POST to any URL on the site.

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/expivi/tags/2.16.2/classes/pdf/class-pdf.php#L34Refplugins.trac.wordpress.org/browser/expivi/tags/2.16.2/classes/woocommerce/class-expivi-cart-manager.php#L212Refplugins.trac.wordpress.org/browser/expivi/tags/2.16.2/classes/woocommerce/class-expivi-cart-manager.php#L238Refplugins.trac.wordpress.org/browser/expivi/tags/2.16.2/classes/woocommerce/class-expivi-cart-manager.php#L598Refplugins.trac.wordpress.org/browser/expivi/tags/2.16.2/classes/woocommerce/class-expivi-cart-manager.php#L95Refplugins.trac.wordpress.org/browser/expivi/tags/2.16.2/templates/pdf/pdf-configuration-details.phtml#L199Refplugins.trac.wordpress.org/changeset?reponame=&old=3723323%40expivi&new=3723323%40expiviRefwww.wordfence.com/threat-intel/vulnerabilities/id/46f69f7b-6d9b-494d-b123-63fc5ebcb6f3?source=cve

How CyberStrike helps

Frequently asked questions

What is CVE-2026-103889?

CVE-2026-103889 is a critical-severity vulnerability. It was published on October 10, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-103889?

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-2026-103889?

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-2026-103889?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-103889 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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