CVE-2025-40587 Cross-site scripting in Polarion V2404
An authenticated attacker can inject arbitrary JavaScript into document titles, leading to stored cross-site scripting attacks against other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-40587?
CVE-2025-40587 is a medium-severity cross-site scripting vulnerability in Siemens Polarion V2404, published on 10 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2025-40587?
How do I fix CVE-2025-40587?
No fix has been published for CVE-2025-40587 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-40587 being exploited?
There is no known exploitation of CVE-2025-40587 in the wild and no public exploit code.
Sources
Also known as GHSA-8xhr-4hhh-87fr.