What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-04-11
• EPSS: 84.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-08-23 · updated 2026-06-17
• Weakness: CWE-326

Description

Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX before R1 2017 and R2 before R2 2017 SP2 uses weak RadAsyncUpload encryption, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

Affected products

• Telerik Ui For Asp.Net Ajax: through 2016.3.1027; 2017.2.503, 2017.2.621

References

• http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html
• http://www.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/unrestricted-file-upload
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0006
• https://www.exploit-db.com/exploits/43874/
• http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html
• http://www.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/unrestricted-file-upload
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0006
• https://www.exploit-db.com/exploits/43874/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-11317

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