{
    "id": "CVE-2013-0333",
    "published": "2013-01-30 12:00:08",
    "last_modified": "2026-06-16 23:49:12",
    "cvss_score": "7.5",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
    "cwe": null,
    "description": "lib/active_support/json/backends/yaml.rb in Ruby on Rails 2.3.x before 2.3.16 and 3.0.x before 3.0.20 does not properly convert JSON data to YAML data for processing by a YAML parser, which allows remote attackers to execute arbitrary code, conduct SQL injection attacks, or bypass authentication via crafted data that triggers unsafe decoding, a different vulnerability than CVE-2013-0156.",
    "epss_score": "0.95327",
    "epss_percentile": "0.99865",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:18:43",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "rubyonrails",
            "product": "rails"
        },
        {
            "vendor": "rubyonrails",
            "product": "ruby_on_rails"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "24434",
            "title": "Ruby on Rails - JSON Processor YAML Deserialization Code Execution (Metasploit)",
            "date": "2013-01-29",
            "url": "https://www.exploit-db.com/exploits/24434"
        }
    ],
    "refs_list": [
        "http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html",
        "http://lists.apple.com/archives/security-announce/2013/Mar/msg00002.html",
        "http://rhn.redhat.com/errata/RHSA-2013-0201.html",
        "http://rhn.redhat.com/errata/RHSA-2013-0202.html",
        "http://rhn.redhat.com/errata/RHSA-2013-0203.html",
        "http://support.apple.com/kb/HT5784",
        "http://weblog.rubyonrails.org/2013/1/28/Rails-3-0-20-and-2-3-16-have-been-released/",
        "http://www.debian.org/security/2013/dsa-2613",
        "http://www.kb.cert.org/vuls/id/628463",
        "https://groups.google.com/group/rubyonrails-security/msg/52179af76915e518?dmode=source&output=gplain",
        "https://puppet.com/security/cve/cve-2013-0333",
        "http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html",
        "http://lists.apple.com/archives/security-announce/2013/Mar/msg00002.html",
        "http://rhn.redhat.com/errata/RHSA-2013-0201.html",
        "http://rhn.redhat.com/errata/RHSA-2013-0202.html",
        "http://rhn.redhat.com/errata/RHSA-2013-0203.html",
        "http://support.apple.com/kb/HT5784",
        "http://weblog.rubyonrails.org/2013/1/28/Rails-3-0-20-and-2-3-16-have-been-released/",
        "http://www.debian.org/security/2013/dsa-2613",
        "http://www.kb.cert.org/vuls/id/628463",
        "https://groups.google.com/group/rubyonrails-security/msg/52179af76915e518?dmode=source&output=gplain",
        "https://puppet.com/security/cve/cve-2013-0333"
    ]
}