{
    "id": "CVE-2013-2503",
    "published": "2013-03-11 17:55:01",
    "last_modified": "2026-06-16 23:53:35",
    "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-20",
    "description": "Privoxy before 3.0.21 does not properly handle Proxy-Authenticate and Proxy-Authorization headers in the client-server data stream, which makes it easier for remote HTTP servers to spoof the intended proxy service via a 407 (aka Proxy Authentication Required) HTTP status code.",
    "epss_score": "0.04632",
    "epss_percentile": "0.91437",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-03 18:17:12",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "privoxy",
            "product": "privoxy"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "38377",
            "title": "Privoxy Proxy - Authentication Information Disclosure",
            "date": "2013-03-11",
            "url": "https://www.exploit-db.com/exploits/38377"
        }
    ],
    "refs_list": [
        "http://blog.c22.cc/2013/03/11/privoxy-proxy-authentication-credential-exposure-cve-2013-2503/",
        "http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/ChangeLog?revision=1.188&view=markup",
        "http://lists.opensuse.org/opensuse-updates/2013-03/msg00118.html",
        "http://blog.c22.cc/2013/03/11/privoxy-proxy-authentication-credential-exposure-cve-2013-2503/",
        "http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/ChangeLog?revision=1.188&view=markup",
        "http://lists.opensuse.org/opensuse-updates/2013-03/msg00118.html"
    ]
}