CVE-2026-1906

Description

The PDF Invoices & Packing Slips for WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.6.0 via the `wpo_ips_edi_save_order_customer_peppol_identifiers` AJAX action due to missing capability checks and order ownership validation. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify Peppol/EDI endpoint identifiers (`peppol_endpoint_id`, `peppol_endpoint_eas`) for any customer by specifying an arbitrary `order_id` parameter on systems using Peppol invoicing. This can affect order routing on the Peppol network and may result in payment disruptions and data leakage.

PUBLISHED Reserved 2026-02-04 | Published 2026-02-18 | Updated 2026-02-18 | Assigner Wordfence

Problem types

CWE-862 Missing Authorization

Product status

Timeline

Credits

Dmitrii Ignatyev finder

References

www.wordfence.com/...-e63b-47aa-97de-1e2382fa25d3?source=cve

plugins.trac.wordpress.org/.../tags/5.6.0/includes/Admin.php

plugins.trac.wordpress.org/.../tags/5.6.0/includes/Admin.php

wordpress.org/...ins/woocommerce-pdf-invoices-packing-slips/

cve.org (CVE-2026-1906)

nvd.nist.gov (CVE-2026-1906)

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