{
    "id": "CVE-2017-18264",
    "published": "2018-05-01 17:29:00",
    "last_modified": "2026-06-17 01:12:30",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": null,
    "description": "An issue was discovered in libraries/common.inc.php in phpMyAdmin 4.0 before 4.0.10.20, 4.4.x, 4.6.x, and 4.7.0 prereleases. The restrictions caused by $cfg['Servers'][$i]['AllowNoPassword'] = false are bypassed under certain PHP versions (e.g., version 5). This can allow the login of users who have no password set even if the administrator has set $cfg['Servers'][$i]['AllowNoPassword'] to false (which is also the default). This occurs because some implementations of the PHP substr function return false when given '' as the first argument.",
    "epss_score": "0.02794",
    "epss_percentile": "0.86055",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-11 18:17:16",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "phpmyadmin",
            "product": "phpmyadmin"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://www.securityfocus.com/bid/97211",
        "https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html",
        "https://www.phpmyadmin.net/security/PMASA-2017-8/",
        "http://www.securityfocus.com/bid/97211",
        "https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html",
        "https://www.phpmyadmin.net/security/PMASA-2017-8/"
    ]
}