CVE-2025-62380

{
  "id": "CVE-2025-62380",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-62380",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-10-15T17:14:58.432539Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 2.9,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/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",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "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"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "eladnava",
          "product": "mailgen",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.0.32"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-10-15T17:16:00.480",
  "references": [
    {
      "url": "https://github.com/eladnava/mailgen/commit/7a791a424ff3a3f7783f8750919f1e98639924a8",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/eladnava/mailgen/security/advisories/GHSA-q4w9-x3rv-4c8j",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "mailgen is a Node.js package that generates responsive HTML e-mails for sending transactional mail. Mailgen versions through 2.0.31 contain an HTML injection vulnerability in plaintext emails generated with the generatePlaintext method when user generated content is supplied. The plaintext generation code attempts to strip HTML tags using a regular expression and then decodes HTML entities, but tags that include certain Unicode line separator characters are not matched and removed. These encoded tags are later decoded into valid HTML content, allowing unexpected HTML to remain in output intended to be plaintext. Projects are affected if they call Mailgen.generatePlaintext with untrusted input and then render or otherwise process the returned string in a context where HTML is interpreted. This can lead to execution of attacker supplied script in the victim’s browser. Version 2.0.32 fixes the issue."
    },
    {
      "lang": "es",
      "value": "mailgen es un paquete de Node.js que genera correos electrónicos HTML responsivos para enviar correo transaccional. Las versiones de Mailgen hasta la 2.0.31 contienen una vulnerabilidad de inyección HTML en correos electrónicos de texto plano generados con el método generatePlaintext cuando se suministra contenido generado por el usuario. El código de generación de texto plano intenta eliminar etiquetas HTML usando una expresión regular y luego decodifica entidades HTML, pero las etiquetas que incluyen ciertos caracteres separadores de línea Unicode no son coincidentes ni eliminadas. Estas etiquetas codificadas son posteriormente decodificadas en contenido HTML válido, permitiendo que HTML inesperado permanezca en la salida destinada a ser texto plano. Los proyectos se ven afectados si llaman a Mailgen.generatePlaintext con entrada no confiable y luego renderizan o procesan de otra manera la cadena devuelta en un contexto donde se interpreta HTML. Esto puede llevar a la ejecución de scripts suministrados por el atacante en el navegador de la víctima. La versión 2.0.32 corrige el problema."
    }
  ],
  "lastModified": "2026-09-30T23:10:00.237",
  "sourceIdentifier": "security-advisories@github.com"
}