CVE-2022-41879: Parseplatform Parse-Server

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In versions prior to 5.3.3 or 4.10.20, a compromised Parse Server Cloud Code Webhook target endpoint allows an attacker to use prototype pollution to bypass the Parse Server `requestKeywordDenylist` option. This issue has been patched in versions 5.3.3 and 4.10.20. There are no known workarounds.

Affected products

• Parseplatform Parse-Server: before 4.10.20 (fixed in 4.10.20); from 5.0.0, before 5.3.3 (fixed in 5.3.3)

Published 2022-11-10. Last modified 2026-06-17.