CVE-2026-124690 Cross-Site Scripting During Kendo UI for jQuery Custom SVG Icon Sanitization
Attackers influencing custom icon content can execute JavaScript before sanitization in Kendo UI for jQuery; apps using custom icons should care.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Harmful if only installed
- No
- Needs a specific call
- Yes
- Fix
- None listed
What is CVE-2026-124690?
CVE-2026-124690 is a high-severity cross-site scripting vulnerability in Progress Software Kendo UI for jQuery, published on 11 Nov 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
In Progress Kendo UI for jQuery, sanitizeSvgContent() parses custom icon markup into a live DOM before filtering it. An attacker who can influence custom icon content can cause JavaScript to execute during icon creation, before an unsafe element is removed. The issue was reported in version 2026.3.1015; the first affected release has not been established. The issue is fixed in version 2026.4.1110.
Weakness: CWE-79
Which versions are affected by CVE-2026-124690?
An affected version is only exploitable if your software calls sanitizeSvgContent(). Many projects that include it are not exposed.
How do I fix CVE-2026-124690?
No fix has been published for CVE-2026-124690 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-124690 being exploited?
There is no known exploitation of CVE-2026-124690 in the wild and no public exploit code.
Sources
Also known as GHSA-r2wf-fj2x-9c4c.