Telerik UI for ASP.NET AJAX < 2026.3.812 Multiple Vulnerabilities

high Nessus Plugin ID 342661

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Synopsis

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

Description

The version of Progress Telerik UI for ASP.NET AJAX installed on the remote Windows host is prior to 2026.3.812. It is, therefore, affected by multiple vulnerabilities:

- In Progress Telerik UI for AJAX prior to v2026.3.812, insufficient validation of client-supplied state in RadImageEditor may allow an attacker to influence which file is returned by the control's image cache, potentially exposing file contents outside the intended image directories. (CVE-2026-18672)

- In Progress Telerik UI for AJAX prior to v2026.3.812, insufficient integrity protection of dialog request parameters used by the RadEditor file browser may allow an attacker who has obtained certain application encryption key material to alter the folders the file browser reads from, writes to, and uploads into, potentially resulting in remote code execution. (CVE-2026-19219)

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 Progress Telerik UI for ASP.NET AJAX version 2026.3.812 or later.

Plugin Details

Severity: High

ID: 342661

File Name: telerik_ui_for_aspnet_ajax_2026_3_812.nasl

Version: 1.2

Type: Local

Agent: windows

Family: Windows

Published: 9/3/2026

Updated: 9/4/2026

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

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.17

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-18672

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-19219

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/2/2026

Vulnerability Publication Date: 9/2/2026

Reference Information

CVE: CVE-2026-18672, CVE-2026-19219

IAVA: 2026-A-0937

Detections

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