{
    "id": "CVE-2012-1823",
    "published": "2012-05-11 10:15:48",
    "last_modified": "2026-06-16 23:40:22",
    "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-77",
    "description": "sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case.",
    "epss_score": "0.99998",
    "epss_percentile": "0.99990",
    "kev": 1,
    "kev_due": "2022-04-15",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:18:23",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-04-15."
    },
    "products": [
        {
            "vendor": "apple",
            "product": "mac_os_x"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        },
        {
            "vendor": "hp",
            "product": "hp-ux"
        },
        {
            "vendor": "opensuse",
            "product": "opensuse"
        },
        {
            "vendor": "php",
            "product": "php"
        },
        {
            "vendor": "redhat",
            "product": "application_stack"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_aus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        },
        {
            "vendor": "redhat",
            "product": "gluster_storage_server_for_on-premise"
        },
        {
            "vendor": "redhat",
            "product": "storage"
        },
        {
            "vendor": "redhat",
            "product": "storage_for_public_cloud"
        },
        {
            "vendor": "suse",
            "product": "linux_enterprise_server"
        },
        {
            "vendor": "suse",
            "product": "linux_enterprise_software_development_kit"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2012-1823",
        "date_added": "2022-03-25",
        "due_date": "2022-04-15",
        "vendor": "PHP",
        "product": "PHP",
        "name": "PHP-CGI Query String Parameter Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "29316",
            "title": "Apache + PHP < 5.3.12 / < 5.4.2 - Remote Code Execution + Scanner",
            "date": "2013-10-31",
            "url": "https://www.exploit-db.com/exploits/29316"
        },
        {
            "source": "exploit-db",
            "ref_id": "29290",
            "title": "Apache + PHP < 5.3.12 / < 5.4.2 - cgi-bin Remote Code Execution",
            "date": "2013-10-29",
            "url": "https://www.exploit-db.com/exploits/29290"
        },
        {
            "source": "exploit-db",
            "ref_id": "18836",
            "title": "PHP < 5.3.12 / < 5.4.2 - CGI Argument Injection",
            "date": "2012-05-05",
            "url": "https://www.exploit-db.com/exploits/18836"
        },
        {
            "source": "exploit-db",
            "ref_id": "18834",
            "title": "PHP 5.3.12/5.4.2 - CGI Argument Injection (Metasploit)",
            "date": "2012-05-04",
            "url": "https://www.exploit-db.com/exploits/18834"
        }
    ],
    "refs_list": [
        "http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/",
        "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041",
        "http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html",
        "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.html",
        "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html",
        "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html",
        "http://marc.info/?l=bugtraq&m=134012830914727&w=2",
        "http://rhn.redhat.com/errata/RHSA-2012-0546.html",
        "http://rhn.redhat.com/errata/RHSA-2012-0547.html",
        "http://rhn.redhat.com/errata/RHSA-2012-0568.html",
        "http://rhn.redhat.com/errata/RHSA-2012-0569.html",
        "http://rhn.redhat.com/errata/RHSA-2012-0570.html",
        "http://secunia.com/advisories/49014",
        "http://secunia.com/advisories/49065",
        "http://secunia.com/advisories/49085",
        "http://secunia.com/advisories/49087",
        "http://support.apple.com/kb/HT5501",
        "http://www.debian.org/security/2012/dsa-2465",
        "http://www.kb.cert.org/vuls/id/520827",
        "http://www.kb.cert.org/vuls/id/673343",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2012:068",
        "http://www.openwall.com/lists/oss-security/2024/06/07/1",
        "http://www.php.net/ChangeLog-5.php#5.4.2",
        "http://www.php.net/archive/2012.php#id2012-05-03-1",
        "http://www.securitytracker.com/id?1027022"
    ]
}