---
id: CVE-2026-47343
aliases:
  - GHSA-3v8v-4wg6-r7qh
title: 'TYPO3 CMS: Destructive Actions on File Mount Folders'
summary: 'TYPO3 CMS: Destructive Actions on File Mount Folders'
severity: high
cwe:
  - CWE-862
vendor: typo3
product: typo3/cms-core
ecosystem: composer
affected:
  - typo3/cms-core < 10.4.57
  - 'typo3/cms-core >= 11.0.0, < 11.5.51'
  - 'typo3/cms-core >= 12.0.0, < 12.4.46'
  - 'typo3/cms-core >= 13.0.0, < 13.4.31'
  - 'typo3/cms-core >= 14.0.0, < 14.3.3'
patched:
  - typo3/cms-core 10.4.57
  - typo3/cms-core 11.5.51
  - typo3/cms-core 12.4.46
  - typo3/cms-core 13.4.31
  - typo3/cms-core 14.3.3
published: '2026-06-12'
updated: '2026-06-12'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-3v8v-4wg6-r7qh'
references:
  - url: 'https://github.com/TYPO3/typo3/security/advisories/GHSA-3v8v-4wg6-r7qh'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-47343'
  - url: >-
      https://github.com/TYPO3/typo3/commit/504e72470ff72aaf5d2256878bf473747f389798
  - url: >-
      https://github.com/TYPO3/typo3/commit/ac4125aef8b9b94528a7f74db2444db57b05a87b
  - url: >-
      https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-47343.yaml
  - url: 'https://typo3.org/security/advisory/typo3-core-sa-2026-007'
  - url: 'https://github.com/advisories/GHSA-3v8v-4wg6-r7qh'
tags:
  - ghsa
  - composer
epss: 0.00414
epssPercentile: 0.3287
ingestedAt: '2026-07-07T15:41:59.014Z'
---

## Overview

### Problem
Non-privileged backend users with file mount access were able to perform write operations (move, delete, rename) on folders representing the root of an active file mount due to missing authorization restrictions.

### Solution
Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.

### Credits
TYPO3 CMS thanks Arne Uplegger for reporting this issue, and TYPO3 security team member Elias Häußler for fixing it.

### Resources
* [TYPO3-CORE-SA-2026-007](https://typo3.org/security/advisory/typo3-core-sa-2026-007)

## Affected packages

- `typo3/cms-core < 10.4.57`
- `typo3/cms-core >= 11.0.0, < 11.5.51`
- `typo3/cms-core >= 12.0.0, < 12.4.46`
- `typo3/cms-core >= 13.0.0, < 13.4.31`
- `typo3/cms-core >= 14.0.0, < 14.3.3`

## Remediation

Upgrade to a patched release:

- `typo3/cms-core 10.4.57`
- `typo3/cms-core 11.5.51`
- `typo3/cms-core 12.4.46`
- `typo3/cms-core 13.4.31`
- `typo3/cms-core 14.3.3`