CVE-2026-13188

MEDIUM

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

Title source: cna

Description

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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-dialoghandler-parameters-tampering-CVE-2026-13188

Scores

CVSS v3 5.9

EPSS 0.0011

EPSS Percentile 1.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-345

Status published

Products (1)

Progress Software/Telerik UI for ASP.NET AJAX 2011.2.712 - 2026.2.708

Published Jul 22, 2026

Tracked Since Jul 22, 2026