CVE-2026-33030: Nginxui Nginx UI

Critical severity, CVSS 9.9. EPSS: 0.4% chance of exploitation in the next 30 days.

Nginx UI is a web user interface for the Nginx web server. In versions 2.3.3 and prior, Nginx-UI contains an Insecure Direct Object Reference (IDOR) vulnerability that allows any authenticated user to access, modify, and delete resources belonging to other users. The application's base Model struct lacks a user_id field, and all resource endpoints perform queries by ID without verifying user ownership, enabling complete authorization bypass in multi-user environments. At time of publication, there are no publicly available patches.

Affected products

• Nginxui Nginx UI: up to and including 2.3.3

Published 2026-03-30. Last modified 2026-06-17.