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

Quick assessment

Affected
wpclever WPC Product Options for WooCommerce
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的 WooCommerce 插件“WPC Product Options”存在存储型跨站脚本漏洞（Stored Cross-Site Scripting, XSS）。该漏洞存在于所有 4.0.5 及更早版本中，原因是缺乏足够的输入清理和输出转义处理。攻击者可以在页面中注入任意 web 脚本，当用户访问被注入的页面时，脚本便会执行。 此漏洞可通过未认证的访客结账流程进行利用，因为恶意载荷被嵌入在 multipart 表单的 Content-Disposition 字段名称中，并以 "wpcpo-"

CVSS 7.2 · High EPSS 0.29% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
wpclever WPC Product Options for WooCommerce ≤ 4.0.5 affected
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I. Basic Information for CVE-2026-97660

Vulnerability Information
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Vulnerability Title
WPC Product Options for WooCommerce <= 4.0.5 - Unauthenticated Stored Cross-Site Scripting via wpcpo-* Array Key via Multipart Field Name
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wpclever WPC Product Options for WooCommerce 0 ~ 4.0.5 -

II. Public POCs for CVE-2026-97660

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III. Intelligence Information for CVE-2026-97660

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Patches & Fixes for CVE-2026-97660 (1)

Vendor Advisories for CVE-2026-97660 (1)

Same Patch Batch · wpclever · 2026-10-03 · 3 CVEs total

CVE-2026-103888 6.1 MEDIUM WPC Smart Quick View for WooCommerce <= 4.4.0 - Reflected Cross-Site Scripting via 'woosq-
CVE-2026-104313 6.1 MEDIUM WPC Estimated Delivery Date for WooCommerce <= 4.0.1 - Reflected Cross-Site Scripting via

IV. Related Vulnerabilities

Same product: WPC Product Options for WooCommerce
Same vendor: wpclever
Same weakness: CWE-79

V. Comments for CVE-2026-97660

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