---
id: CVE-2026-18603
title: >-
  The PiWeb Cancel order / Refund request for WooCommerce WordPress plugin
  before 1.3.4.34 does not have authorization or ownership checks when adding
  the contents of a previous order to the cart, allowing unauthenticated users
  to disclose…
summary: >-
  The PiWeb Cancel order / Refund request for WooCommerce WordPress plugin
  before 1.3.4.34 does not have authorization or ownership checks when adding
  the contents of a previous order to the cart, allowing unauthenticated users
  to disclose…
severity: none
published: '2026-08-09'
updated: '2026-08-09'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18603'
references:
  - url: 'https://wpscan.com/vulnerability/544a35ce-c858-4718-ab43-6e945de6f278/'
    label: contact@wpscan.com
tags:
  - nvd
epss: 0.00299
epssPercentile: 0.20138
ingestedAt: '2026-08-09T16:33:42.745Z'
---

## Overview

The PiWeb Cancel order / Refund request for WooCommerce WordPress plugin before 1.3.4.34 does not have authorization or ownership checks when adding the contents of a previous order to the cart, allowing unauthenticated users to disclose the contents of other customers' orders, as well as to clear and repopulate a logged in user's cart via a crafted link.

## Remediation

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