CVE-2026-106149
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Cross-Site Scripting in Progress Kendo UI for jQuery

Publication date: 2026-10-15

Last updated on: 2026-10-15

Assigner: Progress Software Corporation

Description
In Progress® Kendo® UI for jQuery prior to v2026.3.1015, the Menu component constructs HTML attributes from bound dataSource fields by string concatenation without proper neutralization. An attacker with low privileges who can control these fields can inject JavaScript event-handler attributes that execute when a user interacts with the affected Menu, compromising the confidentiality and integrity of data accessible in the user's browser context.

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Meta Information

Published
2026-10-15
Last Modified
2026-10-15
Generated
2026-10-15
AI Q&A
2026-10-15
EPSS Evaluated
N/A
NVD
CVE-2026-106149
EUVD
EUVD-2026-102076

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Progress Software Kendo UI for jQuery 2011.2.804

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-80 The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.

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Executive Summary

This is a cross-site scripting (XSS) vulnerability in Progress Kendo UI for jQuery's Menu component. It occurs because the component builds HTML attributes from user-controlled data without properly sanitizing it. An attacker can inject malicious JavaScript event handlers into these attributes, which execute when users interact with the menu.

Detection Guidance

Check if your Kendo UI for jQuery version is prior to 2026.3.1015 by inspecting the library files or network requests. Look for Menu component usage with dynamic data binding. Use browser developer tools to monitor for unexpected JavaScript event handlers in rendered HTML.

Impact Analysis

An attacker could steal sensitive data like session cookies, login credentials, or personal information from your browser. They might also perform actions on your behalf or redirect you to malicious sites without your knowledge.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. Organizations using affected versions may face compliance violations and potential fines.

Mitigation Strategies

Upgrade to Kendo UI for jQuery v2026.3.1015 or later immediately. If upgrading is not possible, disable the Menu component or sanitize all data bound to it. Implement input validation for any user-controlled data used in the Menu component.

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