PT-2026-63402 · Progress · Telerik Ui For Asp.Net Ajax

Marcio Almeida · CVE-2026-13188 · Published 2026-07-22 · Updated 2026-07-22

NVD

CVSS v3.1

5.9

Medium

Base vector

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

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.

Fix

Insufficient Verification of Data Authenticity

Weakness Enumeration

CWE-345

Related Identifiers

CVE-2026-13188

Affected Products

Telerik Ui For Asp.Net Ajax

References · 2

• https://telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-dialoghandler-parameters-tampering-CVE-2026-13188 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-13188 · Security Note