{
    "id": "CVE-2021-42338",
    "published": "2021-11-19 09:15:06",
    "last_modified": "2026-06-17 04:09:40",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-285",
    "description": "4MOSAn GCB Doctor’s login page has improper validation of Cookie, which allows an unauthenticated remote attacker to bypass authentication by code injection in cookie, and arbitrarily manipulate the system or interrupt services by upload and execution of arbitrary files.",
    "epss_score": "0.05811",
    "epss_percentile": "0.92932",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-06 18:17:27",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "4mosan",
            "product": "gcb_doctor"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://www.twcert.org.tw/tw/cp-132-5313-45bde-1.html",
        "https://www.twcert.org.tw/tw/cp-132-5313-45bde-1.html"
    ]
}