CVE-2025-62374
Parse Javascript SDK vulnerable to prototype pollution in `Parse.Object` and internal APIs
Description
### Summary Prototype pollution capabilities on various APIs. ### Details Injection of malicious payload allows attacker to remotely execute arbitrary code. `Parse.Object` and internal APIs are affected, specifically: - `ParseObject.fromJSON` - `ParseObject.pin` - `ParseObject.registerSubclass` - `ObjectStateMutations` (internal) - `encode`/`decode` (internal) ### PoC Demonstrative tests added as part of the fix. ### References - https://github.com/parse-community/Parse-SDK-JS/security/advisories/GHSA-9f2h-7v79-mxw3 - Patch https://github.com/parse-community/Parse-SDK-JS/releases/tag/7.0.0-alpha.1
How to fix CVE-2025-62374
To remediate CVE-2025-62374, upgrade the affected package to a fixed version below.
- —upgrade to 7.0.0 or later
Is CVE-2025-62374 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 7.0.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L |