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VulnerabilityPublished

CVE-2026-124688: Progress Software Kendo UI for jQuery · Basic XSS

Affects Progress Software Kendo UI for jQuerySource CVE Database V5

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Not known to be exploited · CVSS 7.1 High : upgrade to 2026.4.1111 soon.

Data as of 11 Nov 2026, 17:04 UTC

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (ProgressSoftware)CVSS 3.17.1
Patch
Available – fixed in 2026.4.1111
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Upgrade Progress Software Kendo UI for jQuery to 2026.4.1111.

Affected software

ProductAffectedFixed in
Progress SoftwareKendo UI for jQueryAffected
  • >=2012.1.322 <2026.4.1111
Fixed in
  • 2026.4.1111

AI-suggested

A fix is available in Progress Software Kendo UI for jQuery version 2026.4.1111. Users should upgrade to this version or later to remediate the vulnerability. No additional vendor advisories indicate alternative mitigations or that no action is required.

Description

CVE-2026-124688 is a cross-site scripting (XSS) vulnerability in Progress Software's Kendo UI for jQuery versions from 2012.1.322 up to but not including 2026.4.1111. The flaw exists in the TabStrip, PanelBar, and Menu widgets when mapping a dataSource field to the spriteCssClass property. An attacker who controls this data can inject malicious markup and event-handler attributes, leading to JavaScript execution in the context of the application's origin. This can allow attackers to access data and perform actions within the victim's authenticated session.

References

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