{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2007-4556",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Struts support in OpenSymphony XWork before 1.2.3, and 2.x before 2.0.4, as used in WebWork and Apache Struts, recursively evaluates all input as an Object-Graph Navigation Language (OGNL) expression when altSyntax is enabled, which allows remote attackers to cause a denial of service (infinite loop) or execute arbitrary code via form input beginning with a \"%{\" sequence and ending with a \"}\" character."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "25524",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/25524"
            },
            {
                "name": "http://jira.opensymphony.com/browse/XW-544",
                "refsource": "CONFIRM",
                "url": "http://jira.opensymphony.com/browse/XW-544"
            },
            {
                "name": "http://issues.apache.org/struts/browse/WW-2030",
                "refsource": "CONFIRM",
                "url": "http://issues.apache.org/struts/browse/WW-2030"
            },
            {
                "name": "ADV-2007-3041",
                "refsource": "VUPEN",
                "url": "http://www.vupen.com/english/advisories/2007/3041"
            },
            {
                "name": "http://forums.opensymphony.com/ann.jspa?annID=54",
                "refsource": "CONFIRM",
                "url": "http://forums.opensymphony.com/ann.jspa?annID=54"
            },
            {
                "name": "ADV-2007-3042",
                "refsource": "VUPEN",
                "url": "http://www.vupen.com/english/advisories/2007/3042"
            },
            {
                "name": "26693",
                "refsource": "SECUNIA",
                "url": "http://secunia.com/advisories/26693"
            },
            {
                "name": "26681",
                "refsource": "SECUNIA",
                "url": "http://secunia.com/advisories/26681"
            },
            {
                "name": "http://wiki.opensymphony.com/display/WW/1.2.3+Press+Release",
                "refsource": "CONFIRM",
                "url": "http://wiki.opensymphony.com/display/WW/1.2.3+Press+Release"
            },
            {
                "name": "http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21706",
                "refsource": "CONFIRM",
                "url": "http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21706"
            },
            {
                "name": "37072",
                "refsource": "OSVDB",
                "url": "http://osvdb.org/37072"
            },
            {
                "name": "http://struts.apache.org/2.x/docs/s2-001.html",
                "refsource": "CONFIRM",
                "url": "http://struts.apache.org/2.x/docs/s2-001.html"
            },
            {
                "name": "http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21701",
                "refsource": "CONFIRM",
                "url": "http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21701"
            },
            {
                "name": "26694",
                "refsource": "SECUNIA",
                "url": "http://secunia.com/advisories/26694"
            }
        ]
    }
}