CVE-2026-106163: Cross-site Scripting (XSS) in Kendo UI for jQuery FileBrowser and ImageBrowser

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-15 · updated 2026-10-20
Weakness: CWE-80

Description

In Progress® Kendo® UI for jQuery versions starting with v2023.1.117 and prior to v2026.3.1015, the FileBrowser and ImageBrowser components render remotely supplied file and directory names as HTML without proper encoding. An attacker-controlled name containing script-related HTML can execute JavaScript in the user's browser, compromising the confidentiality and integrity of data accessible to the affected application.

Affected products

Progress Software Kendo UI for jQuery: from 2023.1.117 before 2026.3.1015 — fixed in 2026.3.1015

How to fix

Upgrade to a fixed version: Progress Software Kendo UI for jQuery 2026.3.1015. Check the vendor advisory for mitigations.

References

https://www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/kb-security-filebrowser-imagebrowser-xss-cve-2026-106163

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