Cross-Site Scripting Vulnerability in Kendo UI for jQuery by Telerik
CVE-2026-124688

7.1HIGH

Key Information:

Vendor

Progress Software
Status
Kendo Ui For Jquery
Vendor
CVE Published:
11 November 2026

What is CVE-2026-124688?

The Kendo UI for jQuery framework versions before 2026.4.1111 contain a vulnerability that allows attackers to inject arbitrary markup through the spriteCssClass field mapping in TabStrip, PanelBar, and Menu widgets. This flaw permits an attacker to manipulate the data source, leading to unauthorized script execution within the context of the victim’s session when the affected widget is rendered. As a result, sensitive data and actions can be accessed, highlighting the importance of updating the affected software to safeguard against such attacks.

Affected Version(s)

Kendo UI for jQuery 2012.1.322 < 2026.4.1111

References

https://www.telerik.com/kendo-jquery-ui/documentation/kno...
vendor-advisory

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Suryansh Narang
.