{
    "id": "CVE-2004-0380",
    "published": "2004-05-04 04:00:00",
    "last_modified": "2026-06-16 22:05:31",
    "cvss_score": "10.0",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
    "cwe": null,
    "description": "The MHTML protocol handler in Microsoft Outlook Express 5.5 SP2 through Outlook Express 6 SP1 allows remote attackers to bypass domain restrictions and execute arbitrary code, as demonstrated on Internet Explorer using script in a compiled help (CHM) file that references the InfoTech Storage (ITS) protocol handlers such as (1) ms-its, (2) ms-itss, (3) its, or (4) mk:@MSITStore, aka the \"MHTML URL Processing Vulnerability.\"",
    "epss_score": "0.63250",
    "epss_percentile": "0.99182",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:04",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "outlook_express"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "23695",
            "title": "Microsoft Internet Explorer 5.0.1 - ITS Protocol Zone Bypass (MS04-013)",
            "date": "2004-02-13",
            "url": "https://www.exploit-db.com/exploits/23695"
        },
        {
            "source": "exploit-db",
            "ref_id": "23400",
            "title": "Microsoft Outlook Express 6.0 - '.MHTML' Forced File Execution (1)",
            "date": "2003-11-25",
            "url": "https://www.exploit-db.com/exploits/23400"
        },
        {
            "source": "exploit-db",
            "ref_id": "23401",
            "title": "Microsoft Outlook Express 6.0 - MHTML Forced File Execution (2)",
            "date": "2003-11-25",
            "url": "https://www.exploit-db.com/exploits/23401"
        }
    ],
    "refs_list": [
        "http://secunia.com/advisories/10523",
        "http://www.k-otik.net/bugtraq/02.18.InternetExplorer.php",
        "http://www.kb.cert.org/vuls/id/323070",
        "http://www.securityfocus.com/archive/1/354447",
        "http://www.securityfocus.com/archive/1/358913",
        "http://www.securityfocus.com/bid/9105",
        "http://www.securityfocus.com/bid/9658",
        "http://www.us-cert.gov/cas/techalerts/TA04-104A.html",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-013",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/15705",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1010",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1028",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A882",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A990",
        "http://secunia.com/advisories/10523",
        "http://www.k-otik.net/bugtraq/02.18.InternetExplorer.php",
        "http://www.kb.cert.org/vuls/id/323070",
        "http://www.securityfocus.com/archive/1/354447",
        "http://www.securityfocus.com/archive/1/358913",
        "http://www.securityfocus.com/bid/9105",
        "http://www.securityfocus.com/bid/9658",
        "http://www.us-cert.gov/cas/techalerts/TA04-104A.html",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-013",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/15705",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1010"
    ]
}