CVE-2026-111578 WooCommerce PDF Invoices & Packing Slips - Stored Cross-Site Scripting

WooCommerce PDF Invoices & Packing Slips plugin > 5.16.2 and < 5.16.5 contains a stored cross-site scripting caused by improper escaping of customer-supplied order fields in invoice and packing-slip documents, letting unauthenticated guest users store malicious scripts executed by shop administrators, exploit requires placing guest orders.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.30% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored Cross-Site Scripting
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-79

Vendor fix

Update to version 5.16.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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