Vulnerability in WPC Product Bundles for WooCommerce — CVE-2026-93836

What to do now

Update WPC Product Bundles for WooCommerce to 8.6.7 or later.

Affected versions

• Everything up to and including 8.6.6

The WPC Product Bundles for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'qty' parameter in all versions up to, and including, 8.6.6 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. The float cast used during quantity validation allows a numeric-prefixed payload such as '1<img src=x onerror=...>' to pass validation while retaining its malicious HTML, which is then stored verbatim in order item metadata under the '_woosb_ids' key.

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/fc620054-00ed-4c2e-9448-b40ae28efff3?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/fc620054-00ed-4c2e-9448-b40ae28efff3
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