Vulnerability · Published Oct 15, 2026 · Assigned by ProgressSoftware

CVE-2026-106147Cross-Site Scripting via ListBox Bound Text in Kendo UI for jQuery

Medium 5.4

In plain English

A medium-severity security flaw in Kendo UI for jQuery from Progress Software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 92.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

In Progress® Kendo® UI for jQuery releases starting with R1 2020 and prior to 2026.3.1015, the ListBox default item template renders the bound dataTextField value as raw HTML without encoding. An attacker who can modify the bound data can supply HTML containing event handlers that execute JavaScript in a user's browser when the affected list item is rendered. Successful exploitation can compromise the confidentiality and integrity of data accessible to the affected application. This issue is fixed in version 2026.3.1015.

Affected products (as reported)

Vendor	Product	Versions
Progress Software	Kendo UI for jQuery	2020.1.114 – before 2026.3.1015

Weakness: CWE-80 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

https://www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/kb-security-listbox-bound-text-xss-cve-2026-106147 vendor-advisory