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CVE-2026-44392

Estado: AplazadaMedia (5.3)—

Missing authorization vulnerability exists in Movable Type. Under certain conditions, when a user without administrator privileges signs in to the product, unintended update processing may be executed.

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Movabletype — Movable TypeAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-44392",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-44392",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-20T13:03:54.098462Z"
        }
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "vultures@jpcert.or.jp",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "vultures@jpcert.or.jp",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 5.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "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": "vultures@jpcert.or.jp",
      "affectedData": [
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type",
          "versions": [
            {
              "status": "affected",
              "version": "9.1.1 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type",
          "versions": [
            {
              "status": "affected",
              "version": "9.0.7 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type",
          "versions": [
            {
              "status": "affected",
              "version": "8.8.3 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type",
          "versions": [
            {
              "status": "affected",
              "version": "8.0.10 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Advanced",
          "versions": [
            {
              "status": "affected",
              "version": "9.1.1 and earlie"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Advanced",
          "versions": [
            {
              "status": "affected",
              "version": "9.0.7 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Advanced",
          "versions": [
            {
              "status": "affected",
              "version": "8.8.3 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Advanced",
          "versions": [
            {
              "status": "affected",
              "version": "8.0.10 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Premium",
          "versions": [
            {
              "status": "affected",
              "version": "9.1.1 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Premium",
          "versions": [
            {
              "status": "affected",
              "version": "9.0.7 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Premium",
          "versions": [
            {
              "status": "affected",
              "version": "2.15 and earlier (included in Movable Type 8.8.4 and earlier or Movable Type 8.0.11 and earlier)"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Premium (Advanced Edition)",
          "versions": [
            {
              "status": "affected",
              "version": "9.1.1 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Premium (Advanced Edition)",
          "versions": [
            {
              "status": "affected",
              "version": "9.0.7 and earlier"
            }
          ]
        },
        {
          "vendor": "Six Apart Ltd.",
          "product": "Movable Type Premium (Advanced Edition)",
          "versions": [
            {
              "status": "affected",
              "version": "2.15 and earlier (included in Movable Type 8.8.4 and earlier or Movable Type 8.0.11 and earlier)"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-05-20T07:16:15.317",
  "references": [
    {
      "url": "https://jvn.jp/en/jp/JVN66473735/",
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://movabletype.org/news/2026/05/mt-908-released.html",
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://www.sixapart.jp/movabletype/news/2026/05/20-1100.html",
      "source": "vultures@jpcert.or.jp"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "vultures@jpcert.or.jp",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Missing authorization vulnerability exists in Movable Type. Under certain conditions, when a user without administrator privileges signs in to the product, unintended update processing may be executed."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de falta de autorización existe en Movable Type. Bajo ciertas condiciones, cuando un usuario sin privilegios de administrador inicia sesión en el producto, se puede ejecutar un procesamiento de actualización no intencionado."
    }
  ],
  "lastModified": "2026-07-24T10:10:00.197",
  "sourceIdentifier": "vultures@jpcert.or.jp"
}