What is CVE-2022-39396?

CVE-2022-39396 is a critical-severity vulnerability in Parse-community Parse-server, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2022-11-10.

How severe is CVE-2022-39396?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-39396 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Prototype Pollution in Parse-community Parse-server

CVE-2022-39396

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Versions prior to 4.10.18, and prior to 5.3.1 on the 5.X branch, are vulnerable to Remote Code Execution via prototype pollution. An at…

Vulnerability class: Prototype Pollution

EPSS: 0.110 (93.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Parse-community Parse-server — versions < 4.10.18, >= 5.0.0, < 5.3.1

Weakness classification (CWE)

CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

Public proof-of-concept exploits

References

github.com/parse-community/parse-server/security/advisories/GHSA-prm5-8g2m-24gg

Frequently asked questions

What is CVE-2022-39396?: CVE-2022-39396 is a critical-severity vulnerability in Parse-community Parse-server, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2022-11-10.
How severe is CVE-2022-39396?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-39396 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.