CVE-2017-9140: Progress Sitefinity CMS

Medium severity, CVSS 6.1. EPSS: 9.7% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in Telerik.ReportViewer.WebForms.dll in Telerik Reporting for ASP.NET WebForms Report Viewer control before R1 2017 SP2 (11.0.17.406) allows remote attackers to inject arbitrary web script or HTML via the bgColor parameter to Telerik.ReportViewer.axd.

Affected products

• Progress Sitefinity CMS: from 4.2, up to and including 11.0
• Progress Telerik Reporting: before 11.0.17.406 (fixed in 11.0.17.406)

Published 2017-05-22. Last modified 2026-06-17.