CVE-2026-13187

High

Description

In Progress® Telerik® UI for AJAX prior to v2026.2.708, DialogHandler provider type input may be tampered with, potentially altering dialog processing and enabling chained exploitation.

SeverityHigh

CVSS8.1

Exploit probability—

Product

Progress Telerik Ui For Asp.net Ajax

PublishedJul 22, 2026

First seenJul 22, 2026

Weakness typeCWE-470CWE-470

How to fix

Update

progress telerik_ui_for_asp.net_ajax2026.2.708 or later

Vendor advisories

telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-dialoghandler-provider-type-tampering-CVE-2026-13187

Affected products

Product	Affected versions	Fixed in
progress telerik_ui_for_asp.net_ajax	2011.2712 ≤ v < 2026.2.708	2026.2.708

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