---
id: CVE-2026-106153
title: >-
  In Progress® Kendo® UI for jQuery prior to version 2026.3.1015, the Calendar
  and MultiViewCalendar month content templates render data.url and data.title
  without proper URL sanitization and HTML attribute encoding
summary: >-
  In Progress® Kendo® UI for jQuery prior to version 2026.3.1015, the Calendar
  and MultiViewCalendar month content templates render data.url and data.title
  without proper URL sanitization and HTML attribute encoding. An attacker with
  low p…
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-79
vendor: Progress Software
product: Kendo UI for jQuery
affected:
  - kendo_ui_for_jquery >= 2011.3.1007 < 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-2026-106153'
references:
  - url: >-
      https://www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/kb-security-calendar-month-template-xss-cve-2026-106153
    label: security@progress.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T15:09:08.439Z'
---

## Overview

In Progress® Kendo® UI for jQuery prior to version 2026.3.1015, the Calendar and MultiViewCalendar month content templates render data.url and data.title without proper URL sanitization and HTML attribute encoding. An attacker with low privileges who can control the URL option or culture-derived title values can supply a JavaScript URL or inject event-handler attributes. When a user interacts with an affected calendar, JavaScript can execute in the user's browser context and compromise the confidentiality and integrity of accessible data.

## Remediation

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