What’s Vulnerable › Vulnerabilities
CVE-2026-106153: Cross-site Scripting (XSS) in Kendo UI for jQuery Calendar and MultiViewCalendar
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-15 · updated 2026-10-20
- Weakness: CWE-79
Description
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.
Affected products
- Progress Software Kendo UI for jQuery: from 2011.3.1007 before 2026.3.1015 — fixed in 2026.3.1015
How to fix
Upgrade to a fixed version: Progress Software Kendo UI for jQuery 2026.3.1015. Check the vendor advisory for mitigations.
References
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