Medium severity4.4NVD Advisory· Published Oct 28, 2026
CVE-2026-109988
CVE-2026-109988
Description
The Product Addons for Woocommerce – Product Options with Custom Fields plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'fields[section][fields][row][col][type]' parameter in all versions up to, and including, 3.1.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with shop manager-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
1- Range: <=3.1.8
Patches
Vulnerability mechanics
References
8- plugins.trac.wordpress.org/browser/woo-custom-product-addons/tags/3.1.8/includes/backend/api.phpnvd
- plugins.trac.wordpress.org/browser/woo-custom-product-addons/tags/3.1.8/includes/helper.phpnvd
- plugins.trac.wordpress.org/browser/woo-custom-product-addons/tags/3.1.8/includes/process/cart.phpnvd
- plugins.trac.wordpress.org/browser/woo-custom-product-addons/tags/3.1.8/includes/process/process.phpnvd
- plugins.trac.wordpress.org/browser/woo-custom-product-addons/tags/3.1.8/templates/cart/cart-item-data.phpnvd
- plugins.trac.wordpress.org/changeset/3756829/woo-custom-product-addons/trunk/templates/cart/cart-item-data.phpnvd
- wordpress.org/plugins/woo-custom-product-addons/nvd
- www.wordfence.com/threat-intel/vulnerabilities/id/99c24e6f-396a-45bd-b16e-cb3b30aff25cnvd
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