Vulnerability Description
The WPC Product Options for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via wpcpo-* Array Key via Multipart Field Name in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable via guest checkout without authentication because the malicious payload is embedded in a multipart Content-Disposition field name beginning with 'wpcpo-', which PHP's RFC1867 parser preserves byte-for-byte and stores into order item meta.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includ
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includ
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includ
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includ
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includ
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3712354%40wpc-product
- https://www.wordfence.com/threat-intel/vulnerabilities/id/13a52c43-c14c-4322-919
FAQ
What is CVE-2026-97660?
CVE-2026-97660 is a vulnerability with a CVSS score of 7.2 (HIGH). The WPC Product Options for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via wpcpo-* Array Key via Multipart Field Name in all versions up to, and including, 4.0.5 due...
How severe is CVE-2026-97660?
CVE-2026-97660 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-97660?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.