CVE-2021-22957: UI UniFi Protect

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A Cross-Origin Resource Sharing (CORS) vulnerability found in UniFi Protect application Version 1.19.2 and earlier allows a malicious actor who has convinced a privileged user to access a URL with malicious code to take over said user’s account.This vulnerability is fixed in UniFi Protect application Version 1.20.0 and later.

Affected products

• UI UniFi Protect: before 1.20.0 (fixed in 1.20.0)

Published 2021-11-24. Last modified 2026-06-17.