Vulnerability · Published Oct 1, 2026 · Assigned by Wordfence
CVE-2026-92244PDF Invoices & Packing Slips for WooCommerce <= 5.16.1 - Unauthenticated Stored Cross-Site Scripting via Billing First Name / Last Name / Company Fields
High 7.2
In plain English
A high-severity cross-site scripting in PDF Invoices & Packing Slips for WooCommerce from wpovernight. 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).
Official description
The PDF Invoices & Packing Slips for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Billing First Name / Last Name / Company Fields in all versions up to, and including, 5.16.1 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 payload survives initial storage because WooCommerce's sanitize_text_field() and wc_clean() do not strip entity-encoded strings containing no literal '<' character, allowing unauthenticated guest-checkout orders to plant the malicious content.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| wpovernight | PDF Invoices & Packing Slips for WooCommerce | 0 – through 5.16.1 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2ec3bd67-6e4b-46b6-8027-feeea149f3a4?source=cve
- https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.1/assets/js/admin-script.js#L766
- https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.1/includes/Settings.php#L470
- https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.1/wpo-ips-functions.php#L658
- https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.1/includes/Settings.php#L409
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3707106%40woocommerce-pdf-invoices-packing-slips%2Ftags%2F5.16.2&old=3658456%40woocommerce-pdf-invoices-packing-slips%2Ftags%2F5.16.1