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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-24447",
        "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "state": "PUBLISHED",
        "assignerShortName": "jpcert",
        "dateReserved": "2026-01-29T02:02:27.800Z",
        "datePublished": "2026-02-04T07:04:04.422Z",
        "dateUpdated": "2026-02-04T15:55:26.690Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "vendor": "Six Apart Ltd.",
                    "product": "Movable Type (Software Edition)",
                    "versions": [
                        {
                            "version": "9.0.4 to 9.0.5 (9.0 series)",
                            "status": "affected"
                        },
                        {
                            "version": "8.8.0 to 8.8.1 (8.8 series)",
                            "status": "affected"
                        },
                        {
                            "version": "8.0.2 to 8.0.8 (8.0 series)",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "Six Apart Ltd.",
                    "product": "Movable Type Advanced (Software Edition)",
                    "versions": [
                        {
                            "version": "9.0.4 to 9.0.5 (9.0 series)",
                            "status": "affected"
                        },
                        {
                            "version": "8.8.0 to 8.8.1 (8.8 series)",
                            "status": "affected"
                        },
                        {
                            "version": "8.0.2 to 8.0.8 (8.0 series)",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "Six Apart Ltd.",
                    "product": "Movable Type Premium (Software Edition)",
                    "versions": [
                        {
                            "version": "9.0.4 (MTP 9.0 series)",
                            "status": "affected"
                        },
                        {
                            "version": "2.13 and earlier (MTP 2 series)",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "Six Apart Ltd.",
                    "product": "Movable Type Premium (Advanced Edition) (Software Edition)",
                    "versions": [
                        {
                            "version": "9.0.4 (MTP 9.0 series)",
                            "status": "affected"
                        },
                        {
                            "version": "2.13 and earlier (MTP 2 series)",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "Six Apart Ltd.",
                    "product": "Movable Type (Cloud Edition)",
                    "versions": [
                        {
                            "version": "9.0.5 (9 series)",
                            "status": "affected"
                        },
                        {
                            "version": "8.8.1 (8 series)",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "Six Apart Ltd.",
                    "product": "Movable Type Premium (Cloud Edition)",
                    "versions": [
                        {
                            "version": "9.0.5 (9 series)",
                            "status": "affected"
                        },
                        {
                            "version": "2.12 (MTP 2 series)",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "If a malformed data is input to the affected product, a CSV file downloaded from the affected product may contain such malformed data. When a victim user download and open such a CSV file, the embedded code may be executed in the user's environment. Note that Movable Type 7 series and 8.4 series, which are End-of-Life (EOL), are affected by the vulnerability as well."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "description": "Improper neutralization of formula elements in a CSV file",
                            "lang": "en-US",
                            "cweId": "CWE-1236",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://movabletype.org/news/2026/02/mt-906-released.html"
                },
                {
                    "url": "https://www.sixapart.jp/movabletype/news/2026/02/04-1100.html"
                },
                {
                    "url": "https://jvn.jp/en/jp/JVN45405689/"
                }
            ],
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                    "format": "CVSS",
                    "scenarios": [
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                            "lang": "en-US",
                            "value": "GENERAL"
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                    ],
                    "cvssV3_0": {
                        "version": "3.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 6.5,
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                        "baseScore": 4.8,
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            "providerMetadata": {
                "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
                "shortName": "jpcert",
                "dateUpdated": "2026-02-04T07:04:04.422Z"
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        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-02-04T15:55:19.585103Z",
                                "id": "CVE-2026-24447",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
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                                        "Automatable": "no"
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                                        "Technical Impact": "partial"
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                                "role": "CISA Coordinator",
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