---
id: CVE-2026-106151
title: >-
  In Progress® Kendo® UI for jQuery versions starting with 2012.2.710 and prior
  to 2026.3.1015, the Validator decodes validation messages from data-msg-*
  attributes and parses the resulting text as HTML
summary: >-
  In Progress® Kendo® UI for jQuery versions starting with 2012.2.710 and prior
  to 2026.3.1015, the Validator decodes validation messages from data-msg-*
  attributes and parses the resulting text as HTML. An attacker who can modify a
  valida…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-80
vendor: Progress Software
product: Kendo UI for jQuery
affected:
  - kendo_ui_for_jquery >= 2012.2.710 < 2026.3.1015
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T16:08:54.067'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106151'
references:
  - url: >-
      https://www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/kb-security-validator-message-xss-cve-2026-106151
    label: security@progress.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T15:09:08.440Z'
---

## Overview

In Progress® Kendo® UI for jQuery versions starting with 2012.2.710 and prior to 2026.3.1015, the Validator decodes validation messages from data-msg-* attributes and parses the resulting text as HTML. An attacker who can modify a validation message can cause HTML that was correctly escaped in the page attribute to become active markup, including event handlers, when the user triggers validation. Successful exploitation can execute JavaScript in a user's browser and compromise the confidentiality and integrity of data accessible to the affected application. This issue is fixed in version 2026.3.1015.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.