CVE-2026-78178: Improperly Controlled Modification of Object Prototype Attributes in jQWidgets
Description
CVE-2026-78178 is a medium severity vulnerability in jQWidgets versions 24.0.0 and 24.0.1. It involves improper control over modification of object prototype attributes in the JQXLite.extend and jqxBaseFramework.extend functions within jqwidgets/jqx-all.js. This flaw can be exploited remotely without authentication. The issue was reported on GitHub but marked as "not planned" for a fix.
CVSS v4.0
Score 6.9medium
Affected software
jQWidgets
pkg:github/jqwidgets/jQWidgetscpe:2.3:a:jqwidgets:jqwidgets:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in jQWidgets up to versions 24.0.0 and 24.0.1 affects the JQXLite.extend and jqxBaseFramework.extend functions in the jqwidgets/jqx-all.js file. It allows an attacker to improperly modify object prototype attributes, which can lead to unexpected behavior or security issues. The attack vector is remote and requires no privileges or user interaction. The GitHub issue tracking this vulnerability was closed with a "not planned" label, indicating no official fix is currently available.
Potential Impact
An attacker can remotely exploit this vulnerability to manipulate object prototype attributes in affected jQWidgets versions, potentially leading to security issues such as prototype pollution. The CVSS 4.0 base score is 6.9, indicating a medium severity impact. There are no known exploits in the wild.
Mitigation Recommendations
No official patch or fix is currently planned or available for this vulnerability as per the GitHub issue closure. Users should consider avoiding or limiting use of affected versions 24.0.0 and 24.0.1 of jQWidgets or implement application-level mitigations to prevent exploitation of prototype pollution. Monitor vendor channels for any future updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-23T15:59:00.456Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8bb588acd9273b49d28da5
Added to database: 08/24/2026, 03:07:52 UTC
Last enriched: 09/10/2026, 23:03:35 UTC
Last updated: 10/08/2026, 18:48:48 UTC
Views: 78
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