What is CVE-2026-106153?

CVE-2026-106153 is a medium-severity vulnerability in Progress Software Kendo Ui For Jquery, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-15.

How severe is CVE-2026-106153?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Progress Software Kendo Ui For Jquery

CVE-2026-106153

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-15 · last modified 2026-10-15.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Progress Software Kendo Ui For Jquery

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/kb-security-calend… (vendor-advisory)

Frequently asked questions

What is CVE-2026-106153?: CVE-2026-106153 is a medium-severity vulnerability in Progress Software Kendo Ui For Jquery, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-15.
How severe is CVE-2026-106153?: Medium severity. CVSS v3 base score is 5.4 out of 10.