Quick answers
- Is CVE-2026-124691 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-124691 being exploited in the wild.
- How severe is CVE-2026-124691?
- High severity, with a CVSS score of 7.1, published 12 November 2026.
- Which products and versions are affected?
- Progress Kendo UI for jQuery 2020.3.915 through 2026.3.1015.
- Is there a fix for CVE-2026-124691?
- Yes: fixed in 2026.4.1111. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-124691 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-124691?
- Check whether you run Progress Kendo UI for jQuery at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 2026.4.1111
Technical details
The vulnerability is a reflected cross-site scripting (XSS) flaw in the Parent dropdown of the Gantt task editor, where task titles are rendered as HTML without proper sanitization. An attacker with the ability to influence task titles in the Gantt datasource can inject arbitrary JavaScript that executes in the context of any user who opens the task editor. This requires user interaction (opening the editor) and is delivered network-side; no bypass of authentication is needed if the task data is accessible.
Affected products
- Progress Kendo UI for jQuery 2020.3.915 through 2026.3.1015
Timeline
- 2026-11-12: disclosed