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CVE-2026-107750

HIGH 7.2 CVSS 3.1
Published
October 31, 2026
Last modified
November 2, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Description

The PDF Invoices & Packing Slips for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'billing_address.first_name / last_name / company, customer_note' parameter in all versions up to, and including, 5.16.4 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 an incomplete fix for CVE-2026-92244: the wp_kses() allow-list introduced in 5.16.2 correctly blocks raw-tag payloads but is bypassed by entity-encoded payloads (e.g., <img onerror=…>) that contain no literal angle-bracket characters and are therefore passed through unmodified before the trailing decode rematerializes them.

Affected WordPress components

  • PDF Invoices & Packing Slips for WooCommerce Plugin · woocommerce-pdf-invoices-packing-slips
    Confirmed match Active
    Up to and including 5.16.4
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • wpovernight PDF Invoices & Packing Slips for WooCommerce — Up to and including 5.16.4

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.3/includes/Documents/BulkDocument.php#L143
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.3/includes/Documents/OrderDocument.php#L1699
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.3/includes/Documents/OrderDocumentMethods.php#L1217
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.3/includes/Documents/OrderDocumentMethods.php#L99
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.3/wpo-ips-functions.php#L630
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3756047/woocommerce-pdf-invoices-packing-slips/trunk/includes/Documents/OrderDocument.php
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/9456cd66-d608-49b8-ad4c-fdc89db4cd29?source=cve
  • nvd.nist.gov Official NVD record