CVE-2025-57324: parse is vulnerable to prototype pollution

September 24, 2025 (updated September 26, 2025)

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.

References

github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/parse%405.3.0/index.js
github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57324
github.com/advisories/GHSA-9g8m-v378-pcg3
github.com/parse-community/Parse-SDK-JS
nvd.nist.gov/vuln/detail/CVE-2025-57324

Code Behaviors & Features

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