CVE-2026-103889criticalCWE-434

CVE-2026-103889: critical vulnerability in expivi 3D Product configurator for WooCommerce

3D Product configurator for WooCommerce <= 2.16.2 - Unauthenticated Remote Code Execution via 'xpv_image' Parameter

Published · Updated

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.8epss 0.7%
from disclosure to weapon2 days
Published on NVDOct 10
1st PoC+2d
exploitation probability
0.7%top 46% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
expivi · 3D Product configurator for WooCommerce
public PoCs found — 1
githubgithub.com/kayes817/CVE-2026-103889★ 0
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://plugins.trac.wordpress.org/browser/expivi/tags/2.16.2/classes/pdf/class-pdf.php#L34https://plugins.trac.wordpress.org/browser/expivi/tags/2.16.2/classes/woocommerce/class-expivi-cart-manager.php#L212https://plugins.trac.wordpress.org/browser/expivi/tags/2.16.2/classes/woocommerce/class-expivi-cart-manager.php#L238https://plugins.trac.wordpress.org/browser/expivi/tags/2.16.2/classes/woocommerce/class-expivi-cart-manager.php#L598https://plugins.trac.wordpress.org/browser/expivi/tags/2.16.2/classes/woocommerce/class-expivi-cart-manager.php#L95https://plugins.trac.wordpress.org/browser/expivi/tags/2.16.2/templates/pdf/pdf-configuration-details.phtml#L199https://plugins.trac.wordpress.org/changeset?reponame=&old=3723323%40expivi&new=3723323%40expivihttps://www.wordfence.com/threat-intel/vulnerabilities/id/46f69f7b-6d9b-494d-b123-63fc5ebcb6f3?source=cve