---
id: CVE-2026-109162
title: >-
  Forms using FileUpload or ImageUpload elements with a custom saveToFileMount
  configured stored uploaded files in the default storage folder 1:/user_upload/
  instead of the configured destination
summary: >-
  Forms using FileUpload or ImageUpload elements with a custom saveToFileMount
  configured stored uploaded files in the default storage folder 1:/user_upload/
  instead of the configured destination. This could cause uploaded files to end
  up …
severity: medium
cvss: 6.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-552
  - CWE-696
vendor: TYPO3
product: typo3/cms-form
affected:
  - typo3/cms-form >= 14.0.0 < 14.3.9
published: '2026-10-13'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:56:15.773'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109162'
references:
  - url: >-
      https://github.com/TYPO3/typo3/commit/cc3e8e28b0e830aaf6ad857272f3f2dc3c4ede12
    label: f4fb688c-4412-4426-b4b8-421ecf27b14a
  - url: >-
      https://github.com/TYPO3/typo3/commit/f536f75c6bd3456165e4200e5df1b236ddeae3b0
    label: f4fb688c-4412-4426-b4b8-421ecf27b14a
  - url: 'https://news.typo3.com/security/advisory/typo3-core-sa-2026-024'
    label: f4fb688c-4412-4426-b4b8-421ecf27b14a
tags:
  - nvd
  - cve.org
epss: 0.00371
epssPercentile: 0.30881
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T17:01:48.615569Z'
cvssSource: cna
ingestedAt: '2026-10-13T10:22:03.559Z'
---

## Overview

Forms using FileUpload or ImageUpload elements with a custom saveToFileMount configured stored uploaded files in the default storage folder 1:/user_upload/ instead of the configured destination. This could cause uploaded files to end up in a publicly accessible storage even though a restricted, non-public storage had been configured. Files stored this way are served directly, without the access checks applied to non-public storages. Forms that use the default value for saveToFileMount are not affected. This issue affects TYPO3 CMS versions 14.0.0-14.3.8.

## Remediation

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