Log in Start free

Vulnerability · Published Oct 3, 2026 · Assigned by Wordfence

CVE-2026-97660WPC Product Options for WooCommerce <= 4.0.5 - Unauthenticated Stored Cross-Site Scripting via wpcpo-* Array Key via Multipart Field Name

High 7.2

In plain English

A high-severity cross-site scripting in WPC Product Options for WooCommerce from wpclever. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.3%top 78.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
wpclever WPC Product Options for WooCommerce 0 – through 4.0.5

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References