---
id: CVE-2026-113442
title: Cross-Site Scripting in extension "TYPO3 Fluid-Form by coding.ms" (fluid_form)
summary: >-
  Values entered by visitors were placed into the HTML summary email without
  being escaped. An unauthenticated attacker could use this to inject HTML into
  an email that is shown to the recipient.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: TYPO3
product: codingms/fluid-form
affected:
  - codingms/fluid-form >= 6.0.0 < 6.0.6
  - codingms/fluid-form < 5.0.10
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T09:30:50.528Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113442'
references:
  - url: 'https://typo3.org/security/advisory/typo3-ext-sa-2026-033'
tags:
  - cve.org
ingestedAt: '2026-10-20T12:05:07.345Z'
---

## Overview

Values entered by visitors were placed into the HTML summary email without being escaped. An unauthenticated attacker could use this to inject HTML into an email that is shown to the recipient.

## Affected

- `codingms/fluid-form >= 6.0.0 < 6.0.6`
- `codingms/fluid-form < 5.0.10`

## Remediation

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