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CVE-2026-34228

Estado: AnalizadaAlta (8.7)—

Emlog is an open source website building system. Prior to version 2.6.8, the backend upgrade interface accepts remote SQL and ZIP URLs via GET parameters. The server first downloads and executes the SQL file, then downloads the ZIP file and extracts it directly into the web root directory. This process does not validate a CSRF token. Therefore, an attacker only needs to trick an authenticated administrator into visiting a malicious link to achieve arbitrary SQL execution and arbitrary file write. This issue has been patched in version 2.6.8.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad CSRF en interfaz de actualización remota (AV:N, PR:N, UI:N) que permite descarga y ejecución de SQL arbitraria (VI:H) y escritura de archivos en raíz web. Explotable remotamente sin privilegios previos.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-34228",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-34228",
          "role": "CISA Coordinator",
          "options": [
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            },
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              "automatable": "no"
            },
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              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-06T13:18:25.291201Z"
        }
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    "cvssMetricV31": [
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        "source": "nvd@nist.gov",
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
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          "confidentialityImpact": "NONE"
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      }
    ],
    "cvssMetricV40": [
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        "type": "Secondary",
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        "cvssData": {
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          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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          "versions": [
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              "version": "< 2.6.8"
            }
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  "published": "2026-04-03T23:17:04.100",
  "references": [
    {
      "url": "https://github.com/emlog/emlog/commit/4c3b8f3486e2c9caafee38a5eedb3cd16f8c8d6f",
      "tags": [
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        "Vendor Advisory"
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      "source": "security-advisories@github.com"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "security-advisories@github.com",
      "description": [
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          "value": "CWE-352"
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "Emlog is an open source website building system. Prior to version 2.6.8, the backend upgrade interface accepts remote SQL and ZIP URLs via GET parameters. The server first downloads and executes the SQL file, then downloads the ZIP file and extracts it directly into the web root directory. This process does not validate a CSRF token. Therefore, an attacker only needs to trick an authenticated administrator into visiting a malicious link to achieve arbitrary SQL execution and arbitrary file write. This issue has been patched in version 2.6.8."
    },
    {
      "lang": "es",
      "value": "Emlog es un sistema de creación de sitios web de código abierto. Anterior a la versión 2.6.8, la interfaz de actualización del backend acepta URLs remotas de SQL y ZIP a través de parámetros GET. El servidor primero descarga y ejecuta el archivo SQL, luego descarga el archivo ZIP y lo extrae directamente en el directorio raíz web. Este proceso no valida un token CSRF. Por lo tanto, un atacante solo necesita engañar a un administrador autenticado para que visite un enlace malicioso y así lograr la ejecución arbitraria de SQL y la escritura arbitraria de archivos. Este problema ha sido parcheado en la versión 2.6.8."
    }
  ],
  "lastModified": "2026-07-24T22:10:00.140",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:emlog:emlog:*:*:*:*:pro:*:*:*",
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              "versionEndExcluding": "2.6.8"
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          "operator": "OR"
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  "sourceIdentifier": "security-advisories@github.com"
}