---
id: CVE-2026-111957
title: >-
  SUMIT Payment Gateway for WooCommerce < 4.0.0 - Unauthenticated Payment
  Confirmation Forgery via Redirect Callback
summary: >-
  The SUMIT Payment Gateway for WooCommerce WordPress plugin before 4.0.0 does
  not bind the payment it confirms with the provider to the order being
  completed, nor check the payment amount against the order total, allowing
  unauthenticated …
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-863
product: SUMIT Payment Gateway for WooCommerce
affected:
  - sumit_payment_gateway_for_woocommerce < 4.0.0
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-21T10:17:25.640304Z'
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T10:35:02.777Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111957'
references:
  - url: 'https://wpscan.com/vulnerability/751aa9b8-761e-4982-8708-6a746fddef09/'
tags:
  - cve.org
ingestedAt: '2026-10-21T06:42:48.177Z'
epss: 0.00247
epssPercentile: 0.15896
---

## Overview

The SUMIT Payment Gateway for WooCommerce WordPress plugin before 4.0.0 does not bind the payment it confirms with the provider to the order being completed, nor check the payment amount against the order total, allowing unauthenticated users to mark a pending order as paid by replaying a payment identifier obtained from any single genuine payment.

## Affected

- `sumit_payment_gateway_for_woocommerce < 4.0.0`

## Remediation

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