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Vulnerabilities

Vulnerability · CVE-2017-11357

Telerik UI for ASP.NET AJAX Insecure Direct Object Reference Vulnerability

Published Aug 23, 2017 · catalog updated Aug 13, 2026 · Progress User Interface (UI) for ASP.NET AJAX

Patch now

CVE-2017-11357 is in the CISA known-exploited catalog, due Feb 16, 2023. Confirm Progress User Interface (UI) for ASP.NET AJAX against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
77.68%
Remediation
Remediation guidance
Affected products
cpe progress/telerik ui for asp.net ajax · vendor Progress User Interface (UI) for ASP.NET AJAX · vendor Telerik User Interface (UI) for ASP.NET AJAX

Telerik UI for ASP.NET AJAX contains an insecure direct object reference vulnerability in RadAsyncUpload that can result in file uploads in a limited location and/or remote code execution. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe progress/telerik ui for asp.net ajaxversion unspecified
  • vendor Progress User Interface (UI) for ASP.NET AJAXversion unspecified
  • vendor Telerik User Interface (UI) for ASP.NET AJAXversion unspecified

How to fix CVE-2017-11357

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2017-11357 is in the CISA known-exploited catalog, due Feb 16, 2023. Confirm Progress User Interface (UI) for ASP.NET AJAX against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-20: Improper Input Validation; CWE-434: Unrestricted Upload of File with Dangerous Type. EPSS 77.68%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 23, 2017 · Catalog

    Detected

    Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

  2. Jan 26, 2023 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Feb 16, 2023 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Aug 13, 2026 · Catalog

    Updated

    Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

Sources

  • CISA KEVConfirmed exploitationCVE-2017-11357

    Telerik UI for ASP.NET AJAX contains an insecure direct object reference vulnerability in RadAsyncUpload that can result in file uploads in a limited location and/or remote code execution.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2017-11357

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2017-11357

    30-day exploitation probability 77.7%

    first.org
  • Exploit DatabasePublic exploit reference43874

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • NIST NVDVulnerability recordCVE-2017-11357

    Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2017-11357

    Telerik UI for ASP.NET AJAX contains an insecure direct object reference vulnerability in RadAsyncUpload that can result in file uploads in a limited location and/or remote code execution.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.