{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2019-11747",
        "ASSIGNER": "security@mozilla.org",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Mozilla",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Firefox",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "69",
                                            "version_affected": "<"
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Firefox ESR",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "68.1",
                                            "version_affected": "<"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "'Forget about this site' removes sites from pre-loaded HSTS list"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1564481",
                "refsource": "MISC",
                "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1564481"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.mozilla.org/security/advisories/mfsa2019-25/",
                "url": "https://www.mozilla.org/security/advisories/mfsa2019-25/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.mozilla.org/security/advisories/mfsa2019-26/",
                "url": "https://www.mozilla.org/security/advisories/mfsa2019-26/"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2019:2251",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2019:2260",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The \"Forget about this site\" feature in the History pane is intended to remove all saved user data that indicates a user has visited a site. This includes removing any HTTP Strict Transport Security (HSTS) settings received from sites that use it. Due to a bug, sites on the pre-load list also have their HSTS setting removed. On the next visit to that site if the user specifies an http: URL rather than secure https: they will not be protected by the pre-loaded HSTS setting. After that visit the site's HSTS setting will be restored. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1."
            }
        ]
    }
}