ACTIVELY EXPLOITED

CVE-2017-11317: Telerik UI for ASP.NET AJAX Unrestricted File Upload Vulnerability

Facts
VendorTelerik
ProductUser Interface (UI) for ASP.NET AJAX
Actively exploitedYes
Added to CISA KEV11 Apr 2022
CISA federal deadline2 May 2022
Weakness (CWE)CWE-326

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

SOURCES

Other Telerik flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.