CVE-2025-57324: Parseplatform Parse JavaScript SDK

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

parse is a package designed to parse JavaScript SDK. A Prototype Pollution vulnerability in the SingleInstanceStateController.initializeState function of parse version 5.3.0 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.

Affected products

• Parseplatform Parse JavaScript SDK: up to and including 5.3.0

Published 2025-09-24. Last modified 2026-06-17.