Vulnerability in Parse-Community Parse-Server

CVE-2023-22474

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Parse Server uses the request header `x-forwarded-for` to determine the client IP address. If Parse Server doesn't run behind a proxy server, then a client can set this header and Parse Server will trust the value of the header. The incorrect client IP address will be used by various features in Parse Server. This allows to circumvent the security mechanism of the Parse Server option `masterKeyIps` by setting an allowed IP address as the `x-forwarded-for` header value. This issue has been patched in version 5.4.1. The mechanism to determine the client IP address has been rewritten. The correct IP address determination now requires to set the Parse Server option `trustProxy`.

EPSS: 0.007 (48.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-22474?
CVE-2023-22474 is a high-severity vulnerability in Parse-Community Parse-Server, classified under Authentication Bypass by Spoofing. CVSS score: 8.7/10. Published 2023-02-03.
How severe is CVE-2023-22474?
High severity. CVSS v3 base score is 8.7 out of 10.