Stored Cross-Site Scripting in Product Addons for WooCommerce by WordPress
CVE-2026-109988

4.4MEDIUM

Key Information:

Vendor

WordPress
Status
Product Addons For WooCommerce – Product Options With Custom Fields
Vendor
CVE Published:
28 October 2026

What is CVE-2026-109988?

The Product Addons for WooCommerce plugin for WordPress allows authenticated attackers with shop manager-level access and above to exploit a vulnerability through the 'fields[section][fields][row][col][type]' parameter. This vulnerability stems from inadequate input sanitization and output escaping. As a result, attackers can inject malicious web scripts that execute each time a user visits the compromised page, potentially leading to unauthorized data access or user impersonation.

Affected Version(s)

Product Addons for Woocommerce – Product Options with Custom Fields 0 <= 3.1.8

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/woo-custom-pro...
https://plugins.trac.wordpress.org/browser/woo-custom-pro...

CVSS V3.1

Score:
4.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wordfence PRISM
.