{
    "id": "CVE-2009-1839",
    "published": "2009-06-12 21:30:00",
    "last_modified": "2026-06-16 23:08:10",
    "cvss_score": "5.4",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:H/Au:N/C:C/I:N/A:N",
    "cwe": "CWE-264",
    "description": "Mozilla Firefox 3 before 3.0.11 associates an incorrect principal with a file: URL loaded through the location bar, which allows user-assisted remote attackers to bypass intended access restrictions and read files via a crafted HTML document, aka a \"file-URL-to-file-URL scripting\" attack.",
    "epss_score": "0.07124",
    "epss_percentile": "0.94048",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-29 18:17:08",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "mozilla",
            "product": "firefox"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "10544",
            "title": "Mozilla Firefox - Location Bar Spoofing",
            "date": "2009-12-18",
            "url": "https://www.exploit-db.com/exploits/10544"
        }
    ],
    "refs_list": [
        "http://osvdb.org/55163",
        "http://secunia.com/advisories/35331",
        "http://secunia.com/advisories/35415",
        "http://secunia.com/advisories/35431",
        "http://secunia.com/advisories/35468",
        "http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.372468",
        "http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1",
        "http://www.debian.org/security/2009/dsa-1820",
        "http://www.mozilla.org/security/announce/2009/mfsa2009-30.html",
        "http://www.securityfocus.com/bid/35326",
        "http://www.securityfocus.com/bid/35386",
        "http://www.vupen.com/english/advisories/2009/1572",
        "https://bugzilla.mozilla.org/show_bug.cgi?id=479943",
        "https://bugzilla.redhat.com/show_bug.cgi?id=503581",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9256",
        "https://rhn.redhat.com/errata/RHSA-2009-1095.html",
        "https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00574.html",
        "https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00657.html",
        "http://osvdb.org/55163",
        "http://secunia.com/advisories/35331",
        "http://secunia.com/advisories/35415",
        "http://secunia.com/advisories/35431",
        "http://secunia.com/advisories/35468",
        "http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.372468",
        "http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1"
    ]
}