CVE-2026-92244
Received Received - Intake

Stored XSS in PDF Invoices & Packing Slips for WooCommerce

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: Wordfence

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.

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-01
AI Q&A
2026-10-01
EPSS Evaluated
N/A
NVD
CVE-2026-92244
EUVD
EUVD-2026-90564

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
woocommerce pdf_invoices_and_packing_slips to 5.16.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a Stored Cross-Site Scripting (XSS) vulnerability in the PDF Invoices & Packing Slips for WooCommerce plugin for WordPress. It allows unauthenticated attackers to inject malicious scripts via billing fields like First Name, Last Name, or Company due to insufficient input sanitization and output escaping. The injected scripts execute when users access affected pages.

Detection Guidance

Check WordPress admin dashboard for the PDF Invoices & Packing Slips plugin version. If version is 5.16.1 or below, the system is vulnerable. Inspect database for malicious scripts in billing fields like first name, last name, or company. Review server access logs for unusual activity related to WooCommerce checkout pages.

Impact Analysis

Unauthenticated attackers could inject malicious scripts into your WordPress site. These scripts could steal user data, hijack sessions, or perform actions on behalf of users. The payload persists even after initial storage, meaning the threat remains until the malicious content is manually removed.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR and HIPAA requirements for protecting personal and health data. Non-compliance may result in legal penalties, fines, or reputational damage due to unauthorized access to sensitive information.

Mitigation Strategies

Update the PDF Invoices & Packing Slips plugin to the latest version immediately. If update is unavailable, disable the plugin temporarily. Review and sanitize all stored billing data for malicious scripts. Implement additional input validation for checkout fields.

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