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Progress Kendo UI for jQuery: Spreadsheet cross-site scripting (CVE-2026-124696)

Progress Kendo UI for jQuery contains a cross-site scripting vulnerability in the Spreadsheet component allowing for arbitrary JavaScript execution.

CVE search metadata

CVE search record: CVE-2026-124696. Severity: high. CVSS: 7.1. KEV: no. Product: Kendo UI for jQuery (< 2026.4.1111). Brief: Progress Kendo UI for jQuery: Spreadsheet cross-site scripting (CVE-2026-124696). Brief link: https://feed.craftedsignal.io/briefs/2026-11-kendo-ui-xss-cve-2026-124696/

Triage facts

Revision 1
Applicability
Kendo UI for jQuery (< 2026.4.1111)
Evidence
Unknown
Severity
High
Sources
1 public source
Freshness
Revision 1Nov 12, 18:46 UTC
Vulnerabilities
1 CVE
Source quality
A2Roughly even chance

Progress Kendo UI for jQuery contains a cross-site scripting (XSS) vulnerability in the Spreadsheet component. The vulnerability exists because sheet names are inserted into the data-sheet-name attribute of the SheetsBar menu button without proper encoding. An attacker who can influence a sheet name can inject an event-handler attribute, leading to arbitrary JavaScript execution in the victim browser context upon hovering over the affected UI element.

Impact

Successful exploitation allows for the execution of arbitrary JavaScript within the user's browser, potentially compromising the confidentiality and integrity of data accessible to the user session.