{
    "id": "CVE-2020-20287",
    "published": "2021-02-01 18:15:12",
    "last_modified": "2026-06-17 03:02:56",
    "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-434",
    "description": "Unrestricted file upload vulnerability in the yccms 3.3 project. The xhUp function's improper judgment of the request parameters, triggers remote code execution.",
    "epss_score": "0.02827",
    "epss_percentile": "0.86227",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-11 18:17:22",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "yccms",
            "product": "yccms"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://www.yccms.net/",
        "https://blog.jiguang.xyz/posts/remote-code-execution-via-upload-image/",
        "http://www.yccms.net/",
        "https://blog.jiguang.xyz/posts/remote-code-execution-via-upload-image/"
    ]
}