CVE-2023-36475

Name: CVE-2023-36475
Creator: NVD / NIST
Published: 2023-06-28T23:15:21.14+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.68%

Last modified Jun 17, 2026

CVE-2023-36475 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 5.5.2 and 6.2.1, an attacker can use a prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser. EPSS estimates a 2.68% chance of exploitation in the next 30 days.

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 5.5.2 and 6.2.1, an attacker can use a prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser. A patch is available in versions 5.5.2 and 6.2.1.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.68%

83.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1321

Affected Software

Vendor	Product	Versions
Parseplatform	Parse-Server	< 5.5.2
Parseplatform	Parse-Server	>= 6.0.0, < 6.2.1

References

https://github.com/parse-community/parse-server/commit/3dd99dd80e27e5e1d99b42844180546d90c7aa90Patch
https://github.com/parse-community/parse-server/commit/5fad2928fb8ee17304abcdcf259932f827d8c81fPatch
https://github.com/parse-community/parse-server/issues/8674Issue Tracking, Patch
https://github.com/parse-community/parse-server/issues/8675Issue Tracking, Patch
https://github.com/parse-community/parse-server/releases/tag/5.5.2Release Notes
https://github.com/parse-community/parse-server/releases/tag/6.2.1Release Notes
https://github.com/parse-community/parse-server/security/advisories/GHSA-462x-c3jw-7vr6Vendor Advisory
https://github.com/parse-community/parse-server/commit/3dd99dd80e27e5e1d99b42844180546d90c7aa90Patch
https://github.com/parse-community/parse-server/commit/5fad2928fb8ee17304abcdcf259932f827d8c81fPatch
https://github.com/parse-community/parse-server/issues/8674Issue Tracking, Patch
https://github.com/parse-community/parse-server/issues/8675Issue Tracking, Patch
https://github.com/parse-community/parse-server/releases/tag/5.5.2Release Notes
https://github.com/parse-community/parse-server/releases/tag/6.2.1Release Notes
https://github.com/parse-community/parse-server/security/advisories/GHSA-462x-c3jw-7vr6Vendor Advisory

Timeline

Published: Jun 28, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-36475?

How severe is CVE-2023-36475?

CVE-2023-36475 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.68% probability of exploitation in the next 30 days.

How do I fix CVE-2023-36475?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-36475?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST