---
id: "CVE-2026-124696"
page: "https://infrastack.ai/live/CVE-2026-124696"
kind: "vulnerability"
aliases: ["CVE-2026-124696"]
title: "Kendo UI for jQuery: spreadsheet sheet names allow script injection on hover"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["javascript", "jquery", "kendo-ui", "package", "spreadsheet"]
not_affected_if: ["no-spreadsheet-widget", "trusted-sheet-names"]
published_at: "2026-11-12T17:17:30+00:00"
first_seen_at: "2026-11-12T17:39:37+00:00"
updated_at: "2026-11-12T17:39:57+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124696", "first_seen_at": "2026-11-12T17:39:37+00:00"}]
exploit_sources: []
---

# Kendo UI for jQuery: spreadsheet sheet names allow script injection on hover

Link for people: https://infrastack.ai/live/CVE-2026-124696 (this .md is for agents)

Kendo UI for jQuery's Spreadsheet puts sheet names unencoded into a SheetsBar attribute, so a crafted sheet name can add an event handler. When a user hovers over the menu button, JavaScript runs in their browser and can reach data in that browser context.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed `@progress/kendo-ui` or `@progress/kendo-spreadsheet` version in `package.json` and the lockfile
- Look for Spreadsheet widgets that load sheet names from user-editable or imported files
- Compare against `2026.4.1111`

## Fix

- Move Kendo UI for jQuery to `2026.4.1111` or later

## Timeline

- 2026-11-12T17:39:37+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124696

## From the sources

In Progress Kendo UI for jQuery, Spreadsheet sheet names are inserted into the SheetsBar menu button's data-sheet-name attribute without encoding. An attacker who can influence a sheet name can inject an event-handler attribute and execute JavaScript when a user hovers over the menu button. Successful exploitation may compromise the confidentiality and integrity of data available in the user's browser context. The first affected version is 2024.4.1112; the latest vulnerable version is 2026.3.1015. The issue is fixed in version 2026.4.1111.

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