CVE-2026-71239

{
  "id": "CVE-2026-71239",
  "sourceIdentifier": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
  "published": "2026-08-05T11:16:26.750",
  "lastModified": "2026-10-24T15:10:00.190",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "DjangoCRM's massmail module renders user-controlled EmlMessage fields (subject, content) through Django's Template constructor with no sanitization, in at least three locations: message_previews.py builds an f-string embedding message.subject/message.content directly into a Template call; email_creators.py passes eml_message.subject directly as a template string to Template; and helpers.py contains the same f-string interpolation pattern."
    },
    {
      "lang": "es",
      "value": "El módulo de correo masivo de DjangoCRM renderiza campos EmlMessage controlados por el usuario (asunto, contenido) a través del constructor Template() de Django sin sanitización, en al menos tres ubicaciones: message_previews.py construye una f-string que incrusta message.subject/message.content directamente en una llamada a Template(); email_creators.py pasa eml_message.subject directamente como una cadena de plantilla a Template(); y helpers.py contiene el mismo patrón de interpolación de f-string. Un usuario autenticado con derechos de edición de mensajes de correo masivo puede inyectar sintaxis de plantilla de Django ({{ }} / {% %}) que se ejecuta en tiempo de renderizado, permitiendo la divulgación de datos de otros usuarios y hashes de contraseñas a través de variables de contexto de solicitud, falsificación de tokens CSRF, y la inclusión de plantillas registradas arbitrarias."
    }
  ],
  "affected": [
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "affectedData": [
        {
          "vendor": "DjangoCRM",
          "product": "django-crm",
          "defaultStatus": "unknown",
          "programFiles": [
            "massmail/views/message_previews.py",
            "massmail/utils/email_creators.py",
            "massmail/utils/helpers.py"
          ],
          "versions": [
            {
              "version": "0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-05T12:56:04.729854Z",
          "id": "CVE-2026-71239",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1336"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/DjangoCRM/django-crm",
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"
    }
  ]
}