CVE-2026-43947

{
  "id": "CVE-2026-43947",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-21T22:17:01.560",
  "lastModified": "2026-10-24T19:10:00.127",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Version 1.3.0 has an unauthenticated Remote Code Execution vulnerability when `secureEnabled` is set to `true`. The `POST /api/runscript` endpoint checks authorization against the stored script's permission by ID, but when `test: true` is set in the request, it compiles and executes attacker-supplied code instead of the stored script's code. An unauthenticated attacker who knows a valid script ID and name may execute arbitrary code via test mode if at least one server-side script exists and is accessible without restrictive permissions. Script IDs and names can be obtained through the unauthenticated information disclosure in `GET /api/project` (reported separately). The only prerequisite is that at least one server-side script exists in the project. Version 1.3.1 fixes the issue."
    },
    {
      "lang": "es",
      "value": "FUXA es un software de Visualización de Procesos (SCADA/HMI/Dashboard) basado en web. La versión 1.3.0 tiene una vulnerabilidad de ejecución remota de código no autenticada cuando ’secureEnabled’ está configurado como ’true’. El endpoint ’POST /api/runscript’ comprueba la autorización contra el permiso del script almacenado por ID, pero cuando ’test: true’ está configurado en la solicitud, compila y ejecuta código proporcionado por el atacante en lugar del código del script almacenado. Un atacante no autenticado que conoce un ID y nombre de script válidos puede ejecutar código arbitrario a través del modo de prueba si existe al menos un script del lado del servidor y es accesible sin permisos restrictivos. Los ID y nombres de los scripts se pueden obtener a través de la revelación de información no autenticada en ’GET /api/project’ (reportado por separado). El único requisito previo es que exista al menos un script del lado del servidor en el proyecto. La versión 1.3.1 corrige el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "frangoteam",
          "product": "FUXA",
          "versions": [
            {
              "version": "= 1.3.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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",
          "baseScore": 8.9,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-23T13:57:00.510556Z",
          "id": "CVE-2026-43947",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/frangoteam/FUXA/commit/78534da61a91613712b44bb63c8d7da8c5df5ca4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/frangoteam/FUXA/pull/2260",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/frangoteam/FUXA/releases/tag/v1.3.1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/frangoteam/FUXA/security/advisories/GHSA-rg3m-cfq7-g6h6",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/frangoteam/FUXA/security/advisories/GHSA-rg3m-cfq7-g6h6",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}