CVE-2020-15788: Siemens Polarion Subversion Webclient

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability has been identified in Polarion Subversion Webclient (All versions). The Polarion subversion web application does not filter user input in a way that prevents Cross-Site Scripting. If a user is enticed into passing specially crafted, malicious input to the web client (e.g. by clicking on a malicious URL with embedded JavaScript), then JavaScript code can be returned and may then be executed by the user’s client. Various actions could be triggered by running malicious JavaScript code.

Affected products

• Siemens Polarion Subversion Webclient: any version

Published 2020-09-09. Last modified 2026-06-17.