What is CVE-2026-111578?

CVE-2026-111578 is a high-severity vulnerability in Pdf Invoices & Packing Slips For Woocommerce, classified under Cross-site Scripting. CVSS score: 7.5/10. Published 2026-10-30.

How severe is CVE-2026-111578?

High severity. CVSS v3 base score is 7.5 out of 10.

XSS in Pdf Invoices & Packing Slips For Woocommerce

CVE-2026-111578

The PDF Invoices & Packing Slips for WooCommerce WordPress plugin from 5.16.2 before 5.16.5 does not properly escape several customer-supplied order fields — including the billing and shipping address values and the customer order note — before they are output in generated invoice and packing-slip documents, allowing unauthenticated users placing guest orders to store a malicious script that executes when a shop administrator views the document, leading to Stored Cross-Site Scripting.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-30 · last modified 2026-10-31.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Pdf Invoices & Packing Slips For Woocommerce

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

wpscan.com/vulnerability/ac5d0074-295d-46ee-b2ad-8bfd3ef9917b/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-111578?: CVE-2026-111578 is a high-severity vulnerability in Pdf Invoices & Packing Slips For Woocommerce, classified under Cross-site Scripting. CVSS score: 7.5/10. Published 2026-10-30.
How severe is CVE-2026-111578?: High severity. CVSS v3 base score is 7.5 out of 10.