Invoicing with InvoiceXpress for WooCommerce <= 9.1 - Unauthenticated Sensitive Information Exposure via Predictable Document PDF File Names
- ID
- WPSEC-2026-1030
- Plugin
- Invoicing with InvoiceXpress for WooCommerce – Free (woo-billing-with-invoicexpress)
- Affected
- all versions before 10.0
- Remediation
- Update to 10.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness
- CWE-552
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-15
- Attack surface
- Invoicing with InvoiceXpress for WooCommerce on WPSec AttackSurface
- Fix released
- Published
Description
The Invoicing with InvoiceXpress for WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 9.1. Generated invoicing document PDFs (invoices, receipts, quotes, proformas and similar) were stored in a publicly accessible folder under wp-content/uploads/invoicexpress/documents/, without any access restriction. Their file names were built from the document type and sequence number plus only a short, insufficiently random suffix. This makes it possible for unauthenticated attackers to guess file URLs and download other customers' invoicing documents containing their personal and billing details.
References
- https://wpsec.com/vuln/WPSEC-2026-1030/
- https://plugins.svn.wordpress.org/woo-billing-with-invoicexpress/tags/10.0/
- https://wordpress.org/plugins/woo-billing-with-invoicexpress/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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