CVE-2026-106150: Cross-Site Scripting in the Kendo UI for jQuery Splitter, Window and Tooltip

The Splitter, Window and Tooltip components build iframe markup without sanitizing URL values or encoding the Window iframe title. A low-privileged attacker controlling those values can inject HTML attributes, including JavaScript event handlers, via an apostrophe in an iframe URL or a crafted title.

CVE ID

CVE-2026-106150

Vendor

Progress Kendo UI for jQuery

Product

Kendo UI for jQuery

Weakness

CWE-79 — Improper Neutralization of Input During Web Page Generation (Cross-site Scripting)

CVSS 3.1

5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected

Splitter and Window from 2011.2.804, Tooltip from 2013.1.319, through 2026.3.1014

Fixed in

2026.3.1015

Published

Oct 15, 2026

Credit

Abhishek Nandkumar Bhaskar (Abhi-Hackz) — finder

Assigner (CNA)

Progress Software

Remediation

Upgrade Kendo UI for jQuery to 2026.3.1015 or later.

References

About this disclosure

This vulnerability was found and reported by Abhishek Nandkumar Bhaskar (Abhi HackZ, credited in the CVE record as Abhi-Hackz) through the vendor's vulnerability disclosure program, and credited to him as finder in the official CVE record assigned by Progress Software as the CVE Numbering Authority. Proof-of-concept details are withheld; the facts on this page are taken from the public CVE record and the vendor advisory. For the background and the bug class explained, read Four CVEs in Progress Software Products and From a Bugcrowd VDP Report to a Published CVE.

Other CVEs credited to Abhishek Bhaskar