# CVE-2025-57324: Parse JavaScript SDK prototype pollution in SingleInstanceStateController

Source: https://junglewise.ai/threats/cve-2025-57324-parse-javascript-sdk-prototype-pollution-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-09-24. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2025-57324 · Severity: low · CVSS 3.1 · Published 2025-09-24

Parse is a JavaScript SDK used to interact with Parse backend servers. A prototype pollution vulnerability in the state initialization function allows authenticated users to inject malicious properties that can cause denial of service or potentially affect application behavior across multiple instances.

Technologies: [parse (npm)](https://junglewise.ai/threats/technologies/parse). Vendors: [npm](https://junglewise.ai/threats/vendors/npm), [Parse Community](https://junglewise.ai/threats/vendors/parse-community).

## Quick answers

**Is CVE-2025-57324 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-57324 being exploited in the wild.

**How severe is CVE-2025-57324?** Low severity, with a CVSS score of 3.1, published 24 September 2025.

**Which products and versions are affected?** parse (npm) SEMVER:introduced=0,fixed=7.0.0-alpha.1; Parse Community Parse JavaScript SDK 0 through <7.0.0-alpha.1.

**Is there a fix for CVE-2025-57324?** Yes. parse (npm): upgrade to 7.0.0-alpha.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2025-57324 attacked?** It is attacked over the network.

**Am I affected by CVE-2025-57324?** Check whether you run parse (npm) or Parse Community Parse JavaScript SDK at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- parse (npm): upgrade to 7.0.0-alpha.1 or later

  ```sh
  npm install parse@7.0.0-alpha.1
  ```


## Technical details

The vulnerability is a prototype pollution flaw (CWE-1321) in the SingleInstanceStateController.initializeState function of the Parse JavaScript SDK. An attacker with authentication credentials can craft a malicious payload that injects properties onto Object.prototype, affecting all JavaScript objects in the application. The attack vector requires network access and authentication. The primary impact is denial of service through resource exhaustion or unexpected application behavior. A fix is available in version 7.0.0-alpha.1, with the patch committed on 2025-10-14.

## Affected products

- Parse Community Parse JavaScript SDK 0 through <7.0.0-alpha.1

## Identifiers

- CVE-2025-57324
- GHSA-9g8m-v378-pcg3

## Timeline

- 2025-09-24: disclosed: Advisory published on OSV and NVD
- 2025-10-14: patched: Fix committed to Parse-SDK-JS repository

## References

- [https://github.com/parse-community/Parse-SDK-JS/commit/9e7c1bad472b1ed2463cbac567b8ec752ae5b4c9](https://github.com/parse-community/Parse-SDK-JS/commit/9e7c1bad472b1ed2463cbac567b8ec752ae5b4c9)

## Related threats

- [Parse JavaScript SDK prototype pollution in Parse.Object](https://junglewise.ai/threats/cve-2025-62374-parse-javascript-sdk-prototype-pollution-in-parse-object)
- [Parse SDK JavaScript password exposure in localStorage](https://junglewise.ai/threats/parse-sdk-javascript-password-exposure-in-localstorage-2759858d)