Nginx Proxy Manager through 2.16.0 fails to restrict the advanced_config field to administrators, allowing non-admin users with manage permissions to inject arbitrary nginx directives. Attackers can inject malicious nginx configuration such as alias directives to serve arbitrary files or control routing for their assigned hosts.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Nginxproxymanager
  • Nginx-proxy-manager
  • Nginx Proxy Manager

No data.

No data.

References
Link Providers
https://github.com/NginxProxyManager/nginx-proxy-manager cve-icon cve-icon
https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/README.md#L36 cve-icon cve-icon
https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/internal/user.js#L52-L62 cve-icon cve-icon
https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/templates/proxy_host.conf#L28 cve-icon cve-icon
https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5749 cve-icon cve-icon
https://github.com/NginxProxyManager/nginx-proxy-manager/pull/5908 cve-icon cve-icon
https://www.vulncheck.com/advisories/nginx-proxy-manager-through-2.16.0-improper-authorization-via-advanced-config cve-icon cve-icon
History

Wed, 30 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 29 Sep 2026 03:00:00 +0000

Type Values Removed Values Added
First Time appeared Nginxproxymanager nginx-proxy-manager
Vendors & Products Nginxproxymanager nginx-proxy-manager

Mon, 28 Sep 2026 22:30:00 +0000

Type Values Removed Values Added
Description Nginx Proxy Manager through 2.16.0 fails to restrict the advanced_config field to administrators, allowing non-admin users with manage permissions to inject arbitrary nginx directives. Attackers can inject malicious nginx configuration such as alias directives to serve arbitrary files or control routing for their assigned hosts.
Title Nginx Proxy Manager through 2.16.0 Improper Authorization via advanced_config
First Time appeared Nginxproxymanager
Nginxproxymanager nginx Proxy Manager
Weaknesses CWE-863
CPEs cpe:2.3:a:nginxproxymanager:nginx_proxy_manager:*:*:*:*:*:*:*:*
Vendors & Products Nginxproxymanager
Nginxproxymanager nginx Proxy Manager
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-28T22:21:41.746Z

Updated: 2026-09-30T14:06:58.595Z

Reserved: 2026-09-28T22:08:55.919Z

Link: CVE-2026-102335

cve-icon Vulnrichment

Updated: 2026-09-30T14:06:54.832Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-28T23:17:02.007

Modified: 2026-09-30T15:22:20.127

Link: CVE-2026-102335

cve-icon Redhat

No data.