CVE-2026-13188: medium-severity vulnerability in Progress Software Telerik UI for ASP.NET AJAX
DialogHandler Parameters Tampering Vulnerability in Telerik UI for ASP.NET AJAX
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.2%
In Progress® Telerik® UI for AJAX prior to v2026.2.708, DialogHandler request parameters may be tampered with, potentially altering dialog server-side behavior and enabling chained exploitation.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
Progress Software · Telerik UI for ASP.NET AJAXRelated CVEs — Progress Software Telerik UI for ASP.NET AJAX
In the same product, most dangerous first.
CVE-2025-3600HIGHUnsafe Reflection Vulnerability in Telerik UI for ASP.NET AJAXEPSS 26.3%CVE-2026-13186HIGHAppDataStorageProvider Path Traversal Deserialization Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.7%CVE-2026-13181HIGHRadAsyncUpload AsyncUploadTypeName Type Resolution Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.7%CVE-2026-13185HIGHPersistenceFramework Cookie Deserialization Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.7%CVE-2026-6023HIGHDeserialization of Untrusted Data Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.5%CVE-2026-13190HIGHPersistenceFramework Unsafe Type Resolution Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.5%