{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-66358",
        "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "state": "PUBLISHED",
        "assignerShortName": "jpcert",
        "dateReserved": "2026-08-10T06:57:22.734Z",
        "datePublished": "2026-08-19T04:53:33.355Z",
        "dateUpdated": "2026-08-19T04:53:33.355Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "vendor": "Extra Innovation Inc.",
                    "product": "acmailer CGI",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "4.1.2"
                        }
                    ]
                },
                {
                    "vendor": "Extra Innovation Inc.",
                    "product": "acmailer DB",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "1.2.2"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A cross-site scripting vulnerability exists in acmailer, which may allow an attacker to execute an arbitrary script."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "description": "Cross-site scripting (XSS)",
                            "lang": "en-US",
                            "cweId": "CWE-79",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://www.acmailer.jp/info/de.cgi?id=119"
                },
                {
                    "url": "https://jvn.jp/en/jp/JVN47716829/"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en-US",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV3_0": {
                        "version": "3.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 6.1,
                        "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
                    }
                },
                {
                    "format": "CVSS",
                    "scenarios": [
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                            "lang": "en-US",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "version": "4.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 5.1,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
                    }
                }
            ],
            "providerMetadata": {
                "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
                "shortName": "jpcert",
                "dateUpdated": "2026-08-19T04:53:33.355Z"
            }
        }
    }
}