---
id: CVE-2026-113468
title: Broken Access Control in extension "TYPO3 Shop by coding.ms" (shop)
summary: >-
  The payment notification endpoint for PayPal accepts incoming data without
  verifying that it comes from the payment provider. Any site visitor can
  overwrite the stored payment notification of an order that is still awaiting
  payment with …
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-862
vendor: TYPO3
product: codingms/shop
affected:
  - codingms/shop >= 6.0.0 < 6.3.0
  - codingms/shop >= 5.0.0 < 5.21.1
  - codingms/shop < 4.9.4
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T09:30:46.881Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113468'
references:
  - url: 'https://typo3.org/security/advisory/typo3-ext-sa-2026-036'
tags:
  - cve.org
ingestedAt: '2026-10-20T12:05:07.347Z'
---

## Overview

The payment notification endpoint for PayPal accepts incoming data without verifying that it comes from the payment provider. Any site visitor can overwrite the stored payment notification of an order that is still awaiting payment with arbitrary content. This requires a page that contains the shop's order plugin. Orders that are already paid are not affected.

## Affected

- `codingms/shop >= 6.0.0 < 6.3.0`
- `codingms/shop >= 5.0.0 < 5.21.1`
- `codingms/shop < 4.9.4`

## Remediation

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