CVE-2026-106151

MEDIUM 5.4

Cross-Site Scripting in Validator Validation Messages in Kendo UI for jQuery

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-80
Vendor	progress software
Product	kendo ui for jquery
Published	Oct 15, 2026

Stay Ahead of the Next One

Get instant alerts for progress software kendo ui for jquery

Be the first to know when new medium vulnerabilities affecting progress software kendo ui for jquery are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

Progress Software / Kendo UI for jQuery

2012.2.710 < 2026.3.1015

References

NVD ↗ CVE.org ↗ EPSS Data ↗

telerik.com: https://www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/kb-security-validator-message-xss-cve-2026-106151

Credits

Abhishek Nandkumar Bhaskar (Abhi-Hackz)