What is CVE-2026-106151?

CVE-2026-106151 is a medium-severity vulnerability in Progress Software Kendo Ui For Jquery, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2026-10-15.

How severe is CVE-2026-106151?

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

XSS in Progress Software Kendo Ui For Jquery

CVE-2026-106151

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.

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-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

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

Frequently asked questions

What is CVE-2026-106151?: CVE-2026-106151 is a medium-severity vulnerability in Progress Software Kendo Ui For Jquery, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2026-10-15.
How severe is CVE-2026-106151?: Medium severity. CVSS v3 base score is 5.4 out of 10.