Kendo UI for jQuery: Cross-site scripting in Grid and TreeList column reordering
Summary
Kendo UI for jQuery versions 2026.3.1015 up to, but not including, 2026.4.1110 parse the header text of the Grid and TreeList column-reorder drag clue as HTML. If an attacker can influence a column field or title used by the application, JavaScript can run in the browser of a user who drags a column header while reordering is enabled. Successful exploitation can compromise the confidentiality and integrity of data in the user's browser session (CVSS 7.1, High).
Affected
- Kendo UI for jQuery 2026.3.1015 up to, but not including, 2026.4.1110
- First affected release: Unknown.
Fixed in
- 2026.4.1110 is the first non-affected release per the CVE range.
- Target 2026.4.1111 or later, as sibling CVEs in the same release cycle name this build (recommendation, not stated in the KB for this CVE).
Workaround
- No vendor workaround found.
- Setting reorderable to false on affected Grid and TreeList instances until patching should remove the trigger path. Test first, as it changes UI behaviour.
- Review where column fields and titles come from; user-supplied or unvetted data is the main risk.
Exploitation
- Exploited in the wild: Unknown.
- Public proof of concept: None found.
- Sibling CVE-2026-124689 is not known to be exploited; this status does not transfer to CVE-2026-124692.
Our recommendation
- Inventory Kendo UI for jQuery versions in internal and customer-facing applications.
- Upgrade to 2026.4.1111 or later.
- Until patched, disable column reordering on affected Grid and TreeList instances where feasible.
- Limit exposure of column titles to trusted data and check the Telerik KB for updates to the affected range.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Telerik KB: Grid and TreeList column reorder drag clue XSS (CVE-2026-124692) www.telerik.com
- OffSeq Radar: CVE-2026-124692 radar.offseq.com
- Telerik: TreeList reorderable configuration www.telerik.com
- OffSeq Radar: CVE-2026-124689 (sibling CVE) radar.offseq.com
- VulDB: sibling CVE with fixed build reference vuldb.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 18:22.
Original description (NVD)
In Progress Kendo UI for jQuery versions 2026.3.1015 up to, but not including, 2026.4.1110, the Grid and TreeList column-reorder drag clue reparses header text as HTML. An attacker who can influence a column field or title used by an affected application can cause JavaScript to execute when a user drags a column header while column reordering is enabled. Successful exploitation may compromise the confidentiality and integrity of data available in the user's browser context. The first affected release has not been established.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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