CVE-2026-19219

DialogHandler UploadPaths Tampering Vulnerability in Telerik UI for ASP.NET AJAX

State: Published
Severity: 8.1 High
Published: Sep 2, 2026
Updated: Sep 3, 2026
Reserved: Aug 7, 2026

Description

In Progress® Telerik® UI for AJAX prior to v2026.3.812, insufficient integrity protection of dialog request parameters used by the RadEditor file browser may allow an attacker who has obtained certain application encryption key material to alter the folders the file browser reads from, writes to, and uploads into, potentially resulting in remote code execution.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	ProgressSoftware

Weaknesses

CWE-345 Insufficient Verification of Data Authenticity
CWE-434 Unrestricted Upload of File with Dangerous Type

Affected Products

Product	Versions
Telerik UI for ASP.NET AJAXProgress Software	2011.2.712 to before 2026.3.812Affected

References

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-dialoghandler-uploadpaths-tampering-cve-2026-19219vendor-advisory

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