Detections
Analytics

Nginx UI < 2.3.3 Sensitive Information Disclosure

critical Web App Scanning Plugin ID 115158

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Synopsis

Nginx UI < 2.3.3 Sensitive Information Disclosure

Description

Nginx UI version below 2.3.3 contains a critical sensitive information disclosure vulnerability that allows unauthenticated attackers to access the /api/backup endpoint and retrieve encryption keys from the X-Backup-Security response header. This enables attackers to download and decrypt full system backups, exposing sensitive data such as user credentials, session tokens, SSL private keys, and Nginx configurations.

Solution

Upgrade to Nginx UI version 2.3.3 or later.

See Also

https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-g9w5-qffc-6762

https://www.tenable.com/security/research/tra-2026-17

Plugin Details

Severity: Critical

ID: 115158

Type: remote

Published: 3/10/2026

Updated: 3/10/2026

Scan Template: basic, full, pci, scan

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-27944

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS Score Source: CVE-2026-27944

Vulnerability Information

CPE: cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/15/2026

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2026-27944