CVE-2026-97660

WPC Product Options for WooCommerce <= 4.0.5 - Unauthenticated Stored Cross-Site Scripting via wpcpo-* Array Key via Multipart Field Name

Published Oct 3, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions wpc Product Options For Woocommerce
Wpclever
Wpclever wpc Product Options For Woocommerce
Vendors & Products Wordpress-extensions
Wordpress-extensions wpc Product Options For Woocommerce
Wpclever
Wpclever wpc Product Options For Woocommerce
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title WPC Product Options for WooCommerce <= 4.0.5 - Unauthenticated Stored Cross-Site Scripting via wpcpo-* Array Key via Multipart Field Name
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Oct 3, 2026, 3:42 PM
Reserved
Sep 24, 2026, 7:36 PM
Status
Deferred
Published
Oct 3, 2026, 7:16 AM
Modified
Oct 6, 2026, 3:04 PM