CVE-2026-97660WPC Product Options for WooCommerce <= 4.0.5 - Unauthenticated Stored Cross-Site Scripting via wpcpo-* Array Key via Multipart Field Name
Updated under an hour ago ()
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It affects wpclever WPC Product Options for WooCommerce. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.29%, higher than 20% of scored CVEs.
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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
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.29% (percentile 20)
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Oct 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
wpclever WPC Product Options for WooCommerce wpclever:wpc_product_options_for_woocommerce (from the name) | through 4.0.5 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/13a52c43-c14c-4322-9191-297e6c647d92?source=cve
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L579
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L792
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L336
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L537
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L573
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3712354%40wpc-product-options&new=3712354%40wpc-product-options
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.