Fancy Product Designer | WooCommerce WordPress <= 6.4.8 - Unauthenticated Information Disclosure and PHAR Deserialization via 'url' Parameter

Exposure of Sensitive Information to an Unauthorized Actor
CVE CVE-2025-13439
CVSS Medium (5.9)
Publicly Published December 15, 2025
Last Updated January 22, 2026
Researcher Muhammad Zeeshan (Xib3rR4dAr)
Description

The Fancy Product Designer plugin for WordPress is vulnerable to Information Disclosure and PHAR Deserialization in all versions up to, and including, 6.4.8. This is due to insufficient validation of user-supplied input in the 'url' parameter of the 'fpd_custom_uplod_file' AJAX action, which flows directly into the 'getimagesize' function without sanitization. This makes it possible for unauthenticated attackers to read arbitrary sensitive files from the server, including wp-config.php.

References

1 affected software package

Software Type Plugin
Software Slug fancy-product-designer (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 6.4.8
Patched Version
  • 6.5.0
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