{
    "id": "CVE-2021-42669",
    "published": "2021-11-05 13:15:09",
    "last_modified": "2026-06-17 04:09:56",
    "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": "A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing \"<?php system($_GET[\"cmd\"]); ?>\" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id.",
    "epss_score": "0.23270",
    "epss_percentile": "0.97718",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-03 18:17:31",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 23.3% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "engineers_online_portal_project",
            "product": "engineers_online_portal"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/TheHackingRabbi/CVE-2021-42669",
        "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671",
        "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html",
        "https://github.com/TheHackingRabbi/CVE-2021-42669",
        "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671",
        "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html"
    ]
}