# CVE-2026-124690: Progress Kendo UI for jQuery DOM-based XSS in SVG icon sanitization

Source: https://junglewise.ai/threats/cve-2026-124690-in-progress-kendo-ui-for-jquery-sanitizesvgcontent-parses-custom  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-11. Updated: 2026-11-11  
License: CC BY 4.0 with a link back

CVE-2026-124690 · Severity: high · CVSS 7.1 · Published 2026-11-11

Kendo UI for jQuery is a web component library used by developers to build interactive user interfaces. A flaw in the SVG icon sanitization function allows attackers who can control custom icon content to execute JavaScript code in the browser, potentially compromising user sessions or stealing sensitive data. The vulnerability occurs because unsafe elements are removed after the markup is parsed into the live DOM rather than before.

Technologies: [Progress Kendo UI for jQuery](https://junglewise.ai/threats/technologies/kendo-ui-for-jquery). Vendors: [Progress](https://junglewise.ai/threats/vendors/progress).

## Quick answers

**Is CVE-2026-124690 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-124690 being exploited in the wild.

**How severe is CVE-2026-124690?** High severity, with a CVSS score of 7.1, published 11 November 2026.

**Which products and versions are affected?** Progress Kendo UI for jQuery before 2026.4.1110.

**Is there a fix for CVE-2026-124690?** Yes: fixed in 2026.4.1110. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-124690 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-124690?** 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 2026.4.1110

## Technical details

The sanitizeSvgContent() function parses custom SVG icon markup into a live DOM before filtering, creating a DOM-based XSS vulnerability. An attacker who can influence custom icon content can inject JavaScript that executes during icon creation, before unsafe elements are removed. This requires the ability to control icon markup parameters, such as through user input or application data flows that feed custom icons.

## Affected products

- Progress Kendo UI for jQuery before 2026.4.1110

## Timeline

- 2026-11-11: disclosed
- 2026-04-01: patched: Fixed in version 2026.4.1110

## References

- [https://www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/kb-security-kendo-svg-icon-sanitizer-xss-cve-2026-124690](https://www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/kb-security-kendo-svg-icon-sanitizer-xss-cve-2026-124690)

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