CVE-2025-40587Network attack vector

Stored XSS via unneutralized document titles

Published Feb 10, 2026 · Updated Feb 10, 2026

Stored XSS in Siemens Polarion V2404 before V2404.5 and V2410 before V2410.2 allows remote authenticated users to run JavaScript. Document-title handling stores arbitrary JavaScript without neutralizing it before rendering the title to later viewers. An authenticated user must create a crafted document title, and another user must view it; the script then executes in that viewer's browser context.

CVSS severity7.6
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Siemens Polarion V2404 before V2404.5 and V2410 before V2410.2 allows remote authenticated users to run JavaScript. Document-title handling stores arbitrary JavaScript without neutralizing it before rendering the title to later viewers. An authenticated user must create a crafted document title, and another user must view it; the script then executes in that viewer's browser context.

The record

CVE
CVE-2025-40587
Published
Feb 10, 2026
Updated
Feb 10, 2026
Vendor
Siemens
Product
Polarion ALM
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <V2404.5
  2. Affected versionversion=0 <V2410.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Siemens · Polarion ALMversion=0 <V2404.5; version=0 <V2410.2

Published CVSS scores

6.2Siemens AGCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N
7.6Siemens AGCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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