---
id: CVE-2025-40834
title: >-
  A vulnerability has been identified in Mendix RichText (All versions >= V4.0.0
  < V4.6.1)
summary: >-
  A vulnerability has been identified in Mendix RichText (All versions >= V4.0.0
  < V4.6.1). Affected widget does not properly neutralize the input. This could
  allow an attacker to execute cross-site scripting attacks.
severity: medium
cvss: 5.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N'
cwe:
  - CWE-79
published: '2025-11-17'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T21:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-40834'
references:
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-190588.html'
    label: productcert@siemens.com
tags:
  - nvd
epss: 0.00236
epssPercentile: 0.13375
ingestedAt: '2026-10-07T21:54:15.057Z'
---

## Overview

A vulnerability has been identified in Mendix RichText (All versions >= V4.0.0 < V4.6.1). Affected widget does not properly neutralize the input. This could allow an attacker to execute cross-site scripting attacks.

## Remediation

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