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FKIE_CVE-2026-40519

Vulnerability from fkie_nvd - Published: 2026-06-08 20:17 - Updated: 2026-07-23 08:10
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
disclosure@vulncheck.comhttps://github.com/NginxProxyManager/nginx-proxy-manager/commit/a5db5ed156355e3088e7d1ceb0533d4bae922def
disclosure@vulncheck.comhttps://github.com/NginxProxyManager/nginx-proxy-manager/pull/5498
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/nginx-proxy-manager-authenticated-rce-via-setupcertbotplugins
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "packageURL": "pkg:github/NginxProxyManager/nginx-proxy-manager",
          "product": "nginx-proxy-manager",
          "repo": "https://github.com/NginxProxyManager/nginx-proxy-manager",
          "vendor": "NginxProxyManager",
          "versions": [
            {
              "lessThanOrEqual": "2.15.1",
              "status": "affected",
              "version": "2.9.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "a5db5ed156355e3088e7d1ceb0533d4bae922def",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Las versiones de Nginx Proxy Manager 2.9.14 hasta 2.15.1, corregidas en el commit a5db5ed, contienen una vulnerabilidad de ejecuci\u00f3n remota de c\u00f3digo autenticada a trav\u00e9s de inyecci\u00f3n de comandos del sistema operativo en la funci\u00f3n setupCertbotPlugins() en backend/setup.js, permitiendo a atacantes con permiso certificates:manage ejecutar comandos arbitrarios al almacenar una carga \u00fatil maliciosa en el campo dns_provider_credentials. El valor dns_provider_credentials controlado por el usuario se interpola directamente en un comando de shell ejecutado a trav\u00e9s de child_process.exec() sin saneamiento ni escape, provocando que el comando inyectado se ejecute al reiniciar el backend."
    }
  ],
  "id": "CVE-2026-40519",
  "lastModified": "2026-07-23T08:10:00.137",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-40519",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-09T14:33:34.717862Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-08T20:17:00.820",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/NginxProxyManager/nginx-proxy-manager/commit/a5db5ed156355e3088e7d1ceb0533d4bae922def"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/NginxProxyManager/nginx-proxy-manager/pull/5498"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/nginx-proxy-manager-authenticated-rce-via-setupcertbotplugins"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}



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