3D Product configurator for WooCommerce <= 2.16.2 - Unauthenticated Remote Code Execution via 'xpv_image' Parameter
Strategic Overview
- Status
- Patched in 2.16.3
- Affected Plugin
- 3D Product configurator for WooCommerce
- Affected Version
<= 2.16.2- CVSS
- 9.8Critical
- Weakness type
- CWE-434 · Unrestricted Upload of File with Dangerous Type
- CVE
CVE-2026-103889
At a glance
CVE-2026-103889 is a critical-severity Unrestricted Upload of File with Dangerous Type vulnerability in the 3D Product configurator for WooCommerce WordPress plugin, affecting versions <= 2.16.2. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 2.16.3; sites on affected versions should update now. Disclosed October 2026, reported by Osman Hussein.
Vulnerability Overview
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.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-434: Unrestricted Upload of File with Dangerous Type
3D Product configurator for WooCommerce <= 2.16.2 carries this weakness at xpv_image, and reaching it takes no account at all. An unrestricted file upload lets a caller store a file whose type or destination the application does not properly constrain.
If an uploaded file lands anywhere the server will execute, the flaw becomes remote code execution and the site should be treated as fully compromised. For 3D Product configurator for WooCommerce the fix is 2.16.3: builds <= 2.16.2 are affected, anything from 2.16.3 onward is not.
Remediation
Update to version 2.16.3, or a newer patched version
How does WordSec protect against this?
Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: 3D Product configurator for WooCommerce 2.16.3 closes this, and updating the plugin is the step that ends it.
- Firewall
- Scanner
- Login Security
External References
Related records
Other vulnerabilities in 3D Product configurator for WooCommerce
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C