CVE-2021-20083: jQuery-Plugin-Query-Object Project jQuery-Plugin-Query-Object

High severity, CVSS 8.8. EPSS: 4.2% chance of exploitation in the next 30 days.

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in jquery-plugin-query-object 2.2.3 allows a malicious user to inject properties into Object.prototype.

Affected products

• jQuery-Plugin-Query-Object Project jQuery-Plugin-Query-Object: version 2.2.3 only

Published 2021-04-23. Last modified 2026-06-17.