---
id: CVE-2026-103382
title: >-
  Casso Auto-confirm Bank Transfer < 4.2.0 - Unauthenticated WooCommerce Order
  Payment Confirmation
summary: >-
  The Casso Flow  WordPress plugin before 4.2.0 does not properly authenticate
  incoming bank-transfer payment notifications, as the token used to verify them
  is empty on a default installation, allowing unauthenticated attackers to
  forge a…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cvssSource: adp
cwe:
  - CWE-284
product: Casso Flow
affected:
  - casso_flow < 4.2.0
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-28T17:50:45.585578Z'
published: '2026-10-28'
updated: '2026-10-28'
sourceUpdated: '2026-10-28T17:58:09.436Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-103382'
references:
  - url: 'https://wpscan.com/vulnerability/2056019e-22bf-4ba1-9b3b-239a369f0219/'
tags:
  - cve.org
epss: 0.00231
epssPercentile: 0.13999
ingestedAt: '2026-10-28T07:06:27.166Z'
---

## Overview

The Casso Flow  WordPress plugin before 4.2.0 does not properly authenticate incoming bank-transfer payment notifications, as the token used to verify them is empty on a default installation, allowing unauthenticated attackers to forge a notification and mark any pending WooCommerce order as paid, regardless of its payment method.

## Affected

- `casso_flow < 4.2.0`

## Remediation

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