CVE-2026-106135
Received Received - Intake

Cross-Site Scripting in Progress Kendo UI for Angular

Publication date: 2026-11-06

Last updated on: 2026-11-06

Assigner: Progress Software Corporation

Description
Cross-Site Scripting (XSS) in the Chat component (@progress/kendo-angular-conversational-ui) in Progress Software Kendo UI for Angular versions prior to 25.3.0 allows a low-privileged attacker who can supply Chat messages to execute arbitrary JavaScript in another user's browser via an unsafe URL in an openUrl quick action, which runs when the user clicks the action.

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Meta Information

Published
2026-11-06
Last Modified
2026-11-06
Generated
2026-11-06
AI Q&A
2026-11-06
EPSS Evaluated
N/A
NVD
CVE-2026-106135
EUVD
EUVD-2026-118361

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Progress Software Kendo UI for Angular From 0 (inc) to 25.3.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a Cross-Site Scripting (XSS) vulnerability in Progress Software Kendo UI for Angular versions before 25.3.0. It affects the Chat component (@progress/kendo-angular-conversational-ui). A low-privileged attacker can inject malicious JavaScript by providing a Chat message containing an unsafe URL in an openUrl quick action. When another user clicks this action, the script executes in their browser.

Detection Guidance

This vulnerability is specific to the Progress Software Kendo UI for Angular library. To detect it, check if your application uses the @progress/kendo-angular-conversational-ui component version prior to 25.3.0. Inspect network traffic for unsafe URL handling in Chat messages or openUrl quick actions.

Impact Analysis

An attacker could steal session cookies, redirect users to phishing sites, or perform actions on behalf of the user. This could lead to unauthorized data access, account takeover, or defacement of the application. Users with higher privileges are at greater risk if exploited.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR (data protection) and HIPAA (health information privacy). Organizations may face fines, legal action, and reputational damage. Compliance requires patching to prevent unauthorized data exposure.

Mitigation Strategies

Upgrade the @progress/kendo-angular-conversational-ui component to version 25.3.0 or later. Review and sanitize user-supplied Chat messages to prevent XSS attacks. Implement input validation for URLs in openUrl actions.

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