CVE-2020-11414: Telerik UI For Silverlight

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

An issue was discovered in Progress Telerik UI for Silverlight before 2020.1.330. The RadUploadHandler class in RadUpload for Silverlight expects a web request that provides the file location of the uploading file along with a few other parameters. The uploading file location should be inside the directory where the upload handler class is defined. Before 2020.1.330, a crafted web request could result in uploads to arbitrary locations.

Affected products

• Telerik UI For Silverlight: before 2020.1.330 (fixed in 2020.1.330)

Published 2020-03-31. Last modified 2026-06-17.