CVE-2021-20085: Backbone-Query-Parameters Project Backbone-Query-Parameters

High severity, CVSS 8.8. EPSS: 1.6% chance of exploitation in the next 30 days.

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in backbone-query-parameters 0.4.0 allows a malicious user to inject properties into Object.prototype.

Affected products

• Backbone-Query-Parameters Project Backbone-Query-Parameters: version 0.4.0 only

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