{
    "id": "CVE-2023-4278",
    "published": "2023-09-11 20:15:11",
    "last_modified": "2026-06-17 06:37:27",
    "cvss_score": "7.5",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
    "cwe": null,
    "description": "The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts.",
    "epss_score": "0.06235",
    "epss_percentile": "0.93342",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-05 18:17:35",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "stylemixthemes",
            "product": "masterstudy_lms"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "51735",
            "title": "Wordpress Plugin Masterstudy LMS - 3.0.17 - Unauthenticated Instructor Account Creation",
            "date": "2023-10-09",
            "url": "https://www.exploit-db.com/exploits/51735"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/175007/WordPress-Masterstudy-LMS-3.0.17-Account-Creation.html",
        "https://wpscan.com/vulnerability/cb3173ec-9891-4bd8-9d05-24fe805b5235",
        "http://packetstormsecurity.com/files/175007/WordPress-Masterstudy-LMS-3.0.17-Account-Creation.html",
        "https://wpscan.com/vulnerability/cb3173ec-9891-4bd8-9d05-24fe805b5235"
    ]
}