{
    "id": "CVE-2013-4200",
    "published": "2014-01-21 16:06:19",
    "last_modified": "2026-06-16 23:56:48",
    "cvss_score": "5.8",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
    "cwe": "CWE-264",
    "description": "The isURLInPortal method in the URLTool class in in_portal.py in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 treats URLs starting with a space as a relative URL, which allows remote attackers to bypass the allow_external_login_sites filtering property,  redirect users to arbitrary web sites, and conduct phishing attacks via a space before a URL in the \"next\" parameter to acl_users/credentials_cookie_auth/require_login.",
    "epss_score": "0.02222",
    "epss_percentile": "0.82152",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-07 18:17:10",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "plone",
            "product": "plone"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "38738",
            "title": "Plone - 'in_portal.py' < 4.1.3 Session Hijacking",
            "date": "2013-07-31",
            "url": "https://www.exploit-db.com/exploits/38738"
        }
    ],
    "refs_list": [
        "http://plone.org/products/plone-hotfix/releases/20130618",
        "http://plone.org/products/plone/security/advisories/20130618-announcement",
        "http://www.openwall.com/lists/oss-security/2013/08/01/2",
        "http://www.securityfocus.com/archive/1/530787/100/0/threaded",
        "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-4200",
        "http://plone.org/products/plone-hotfix/releases/20130618",
        "http://plone.org/products/plone/security/advisories/20130618-announcement",
        "http://www.openwall.com/lists/oss-security/2013/08/01/2",
        "http://www.securityfocus.com/archive/1/530787/100/0/threaded",
        "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-4200"
    ]
}