Siemens Polarion

Plan PatchCVSS 7.6ICS-CERT ICSA-26-043-02Feb 10, 2026
Siemens
Attack path
Attack VectorNetwork
Auth RequiredLow
ComplexityLow
User InteractionRequired
Summary

Polarion before V2506 contains a cross-site scripting (XSS) vulnerability that allows authenticated remote attackers to inject malicious scripts into the web interface. The vulnerability affects users interacting with Polarion through a web browser.

What this means
What could happen
An authenticated attacker could inject malicious scripts that execute in the browsers of other Polarion users, potentially stealing session credentials or performing actions on their behalf within the Polarion system.
Who's at risk
Siemens Polarion users, particularly those managing requirements, test cases, or documents through the web interface. This affects any organization using Polarion V2404 (before 2404.5) or V2410 (before 2410.2) for product lifecycle management, software engineering collaboration, or quality assurance workflows.
How it could be exploited
An attacker with valid Polarion credentials inputs malicious JavaScript code into a vulnerable input field. When other users view the affected page or content, the script executes in their browser in the context of their Polarion session, allowing the attacker to harvest credentials or trigger unintended actions.
Prerequisites
  • Valid Polarion user credentials
  • Network access to Polarion web interface
  • A victim user must view the page or content containing the injected script
Requires valid authenticationLow exploit complexityAffects stored data integrity within PolarionCould compromise user sessions and workflows
Exploitability
Unlikely to be exploited — EPSS score 0.0%
Affected products (2)
2 with fix
ProductAffected VersionsFix Status
Polarion V2404< 2404.52404.5
Polarion V2410< 2410.22410.2
Remediation & Mitigation
0/3
Do now
0/1
HARDENINGEducate users not to click on suspicious links within Polarion messages or reports
Schedule — requires maintenance window
0/2

Patching may require device reboot — plan for process interruption

Polarion V2404
HOTFIXUpdate Polarion V2404 installations to version 2404.5 or later
Polarion V2410
HOTFIXUpdate Polarion V2410 installations to version 2410.2 or later
API: /api/v1/advisories/962e72bd-8ad5-4bdb-a838-3e96e2a5eb5a

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Siemens Polarion | CVSS 7.6 - OTPulse