---
id: CVE-2026-13116
title: >-
  The PDF Invoices & Packing Slips for WooCommerce plugin for WordPress is
  vulnerable to Insecure Direct Object Reference in all versions up to, and
  including, 5.14.0 via the generate_document_shortcode due to missing
  validation on a user …
summary: >-
  The PDF Invoices & Packing Slips for WooCommerce plugin for WordPress is
  vulnerable to Insecure Direct Object Reference in all versions up to, and
  including, 5.14.0 via the generate_document_shortcode due to missing
  validation on a user …
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-639
published: '2026-07-11'
updated: '2026-07-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-13116'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.14.0/includes/Endpoint.php#L111
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.14.0/includes/Frontend.php#L271
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.14.0/includes/Frontend.php#L284
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.9.2/includes/Endpoint.php#L111
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.9.2/includes/Frontend.php#L271
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.9.2/includes/Frontend.php#L284
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3590578%40woocommerce-pdf-invoices-packing-slips&new=3590578%40woocommerce-pdf-invoices-packing-slips
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/6525195e-5d90-4dd4-b9ee-612a8295c262?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00387
epssPercentile: 0.30066
ingestedAt: '2026-07-11T23:16:20.341Z'
---

## Overview

The PDF Invoices & Packing Slips for WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.14.0 via the generate_document_shortcode due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with contributor-level access and above, to mint publicly accessible, session-free download links for arbitrary third-party orders, exposing customer names, billing and shipping addresses, email addresses, phone numbers, order and invoice numbers, line items, totals, payment details, and customer notes contained in those orders' invoices and packing slips. Exploitation requires the plugin's Document link access type setting to be configured to 'full'; with the default 'logged_in' value, generated URLs are signed with a per-session nonce rather than the order_key, making the shortcode path unexploitable for unauthorized access to third-party orders.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.