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CVE-2025-47280

Estado: AnalizadaBaja (2.3)—

Umbraco Forms is a form builder that integrates with the Umbraco content management system. Starting in the 7.x branch and prior to versions 13.4.2 and 15.1.2, the 'Send email' workflow does not HTML encode the user-provided field values in the sent email message, making any form with this workflow configured vulnerable, as it allows sending the message from a trusted system and address, potentially bypassing spam and email client security systems. This issue affects all (supported) versions Umbraco Forms and is patched in 13.4.2 and 15.1.2.

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Unpatched or unsupported versions can workaround this issue by using the `Send email with template (Razor)` workflow instead or writing a custom workflow type. To avoid accidentally using the vulnerable workflow again, the `SendEmail` workflow type can be removed using a composer available in the GitHub Security Advisory for this vulnerability.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Umbraco — Umbraco Forms

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-47280",
  "cveTags": [],
  "metrics": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-47280",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-13T17:36:31.057513Z"
        }
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    "cvssMetricV31": [
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        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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        "impactScore": 2.7,
        "exploitabilityScore": 2.8
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    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N/E:U/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",
          "exploitMaturity": "UNREPORTED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "PASSIVE",
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          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "LOW",
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          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
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      "affectedData": [
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          "versions": [
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              "version": ">= 7.0.0, < 13.4.2"
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            {
              "status": "affected",
              "version": ">= 15.0.0, < 15.1.2"
            }
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  ],
  "published": "2025-05-13T17:16:04.580",
  "references": [
    {
      "url": "https://github.com/umbraco/Umbraco.Forms.Issues/security/advisories/GHSA-2qrj-g9hq-chph",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-116"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Umbraco Forms is a form builder that integrates with the Umbraco content management system. Starting in the 7.x branch and prior to versions 13.4.2 and 15.1.2, the 'Send email' workflow does not HTML encode the user-provided field values in the sent email message, making any form with this workflow configured vulnerable, as it allows sending the message from a trusted system and address, potentially bypassing spam and email client security systems. This issue affects all (supported) versions Umbraco Forms and is patched in 13.4.2 and 15.1.2. Unpatched or unsupported versions can workaround this issue by using the `Send email with template (Razor)` workflow instead or writing a custom workflow type. To avoid accidentally using the vulnerable workflow again, the `SendEmail` workflow type can be removed using a composer available in the GitHub Security Advisory for this vulnerability."
    },
    {
      "lang": "es",
      "value": "Umbraco Forms es un generador de formularios que se integra con el sistema de gestión de contenido Umbraco. A partir de la rama 7.x y en versiones anteriores a la 13.4.2 y la 15.1.2, el flujo de trabajo \"Send email\" no codifica en HTML los valores de los campos proporcionados por el usuario en el correo electrónico enviado, lo que hace vulnerable cualquier formulario con este flujo de trabajo configurado, ya que permite enviar el mensaje desde un sistema y una dirección de confianza, lo que podría eludir los sistemas de seguridad de correo no deseado y de los clientes de correo electrónico. Este problema afecta a todas las versiones compatibles de Umbraco Forms y está parcheado en las versiones 13.4.2 y 15.1.2. Las versiones sin parchear o sin soporte pueden solucionar este problema utilizando el flujo de trabajo \"Enviar correo electrónico con plantilla (Razor)\" o creando un tipo de flujo de trabajo personalizado. Para evitar volver a utilizar accidentalmente el flujo de trabajo vulnerable, el tipo de flujo de trabajo \"Enviar correo electrónico\" se puede eliminar mediante un editor disponible en el aviso de seguridad de GitHub para esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T09:27:39.570",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:umbraco:umbraco_forms:*:*:*:*:*:*:*:*",
              "vulnerable": true,
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              "versionEndExcluding": "13.4.2",
              "versionStartIncluding": "7.0.0"
            },
            {
              "criteria": "cpe:2.3:a:umbraco:umbraco_forms:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "5E68433F-FE88-4CCD-8884-AE920E2907B7",
              "versionEndExcluding": "15.1.2",
              "versionStartIncluding": "14.0.0"
            }
          ],
          "operator": "OR"
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  "sourceIdentifier": "security-advisories@github.com"
}