Telerik UI for ASP.NET AJAX < 2026.2.708 Multiple Vulnerabilities

high Nessus Plugin ID 330092

Synopsis

The remote host has a web application development framework that is affected by multiple vulnerabilities.

Description

The version of Telerik UI for ASP.NET AJAX installed on the remote Windows host is prior to 2026.2.708. It is, therefore, affected by multiple vulnerabilities:

- In Progress Telerik UI for AJAX prior to v2026.2.708, applications using cookie-based storage in RadPersistenceManager or RadDockLayout deserialize attacker-controlled cookie content, allowing unauthenticated remote code execution. (CVE-2026-13185)

- In Progress Telerik UI for AJAX prior to v2026.2.708, a path traversal vulnerability in the file-based persistence storage provider can be exploited when the storage key is derived from user-controlled input, enabling attacker-controlled deserialization and remote code execution. (CVE-2026-13186)

- In Progress Telerik UI for AJAX prior to v2026.2.708, insufficient validation of content submitted to the RadEditor PDF export feature may allow an authenticated attacker to trigger server-side requests to arbitrary hosts, resulting in outbound network connections and potential exposure of Windows authentication credentials.
(CVE-2026-13192)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Telerik UI for ASP.NET AJAX version 2026.2.708 or later.

See Also

http://www.nessus.org/u?4dc2b878

http://www.nessus.org/u?5487e08b

http://www.nessus.org/u?e6a383d5

Plugin Details

Severity: High

ID: 330092

File Name: telerik_ui_for_aspnet_ajax_2026_2_708.nasl

Version: 1.1

Type: Local

Agent: windows

Family: Windows

Published: 7/27/2026

Updated: 7/27/2026

Configuration: Enable paranoid mode, Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.13

CVSS v2

Risk Factor: High

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-13185

CVSS v3

Risk Factor: High

Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/a:telerik:ui_for_asp.net_ajax

Required KB Items: installed_sw/Telerik UI for ASP.NET AJAX, Settings/ParanoidReport

Patch Publication Date: 7/22/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-13185, CVE-2026-13186, CVE-2026-13192

IAVA: 2026-A-0763