CVE-2026-40519

HIGH

Nginx Proxy Manager Authenticated RCE via setupCertbotPlugins()

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-40519. PoCs published by namu1030.

AI-analyzed exploit summary The repository contains only a README.md file with a title referencing CVE-2026-40519 and Nginx, but no technical details, exploit code, or vulnerability analysis. It is an incomplete placeholder with no functional content.

Description

Nginx Proxy Manager versions 2.9.14 through 2.15.1, fixed in commit a5db5ed, contain an authenticated remote code execution vulnerability via OS command injection in the setupCertbotPlugins() function in backend/setup.js, allowing attackers with certificates:manage permission to execute arbitrary commands by storing a malicious payload in the dns_provider_credentials field. The user-controlled dns_provider_credentials value is interpolated directly into a shell command executed via child_process.exec() without sanitization or escaping, causing the injected command to execute upon backend restart.

Exploits (1)

github STUB
by namu1030 · poc
https://github.com/namu1030/CVE-2026-40519

The repository contains only a README.md file with a title referencing CVE-2026-40519 and Nginx, but no technical details, exploit code, or vulnerability analysis. It is an incomplete placeholder with no functional content.

Classification
Stub 95%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: Nginx (unspecified version)
No auth needed
mistral-large-3 · analyzed Jul 07, 2026 Full analysis →

Scores

CVSS v3 7.5
EPSS 0.0092
EPSS Percentile 56.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-78
Status published
Products (2)
NginxProxyManager/nginx-proxy-manager 2.9.14 - 2.15.1
NginxProxyManager/nginx-proxy-manager a5db5ed156355e3088e7d1ceb0533d4bae922def
Published Jun 08, 2026
Tracked Since Jun 09, 2026