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CVE-2026-33030

CRITICAL CVSS 3.1: 9.9 EPSS 0.03%
Updated Apr 01, 2026
Nginx
Parameter Value
CVSS 9.9 (CRITICAL)
Affected Versions before 2.3.3
Type CWE-639 (Authorization Bypass), CWE-78 (OS Command Injection)
Vendor Nginx
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Nginxui Nginx_Ui
cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*
<= 2.3.3