{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-120640",
        "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "state": "PUBLISHED",
        "assignerShortName": "CPANSec",
        "dateReserved": "2026-11-02T17:41:07.710Z",
        "datePublished": "2026-11-03T23:40:33.770Z",
        "dateUpdated": "2026-11-03T23:40:33.770Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://cpan.org/modules",
                    "defaultStatus": "unaffected",
                    "modules": [
                        "CGI"
                    ],
                    "packageName": "CGI",
                    "packageURL": "pkg:cpan/CGI",
                    "programFiles": [
                        "lib/CGI.pm"
                    ],
                    "programRoutines": [
                        {
                            "name": "CGI::init"
                        },
                        {
                            "name": "CGI::parse_params"
                        },
                        {
                            "name": "CGI::read_multipart"
                        },
                        {
                            "name": "CGI::read_multipart_related"
                        }
                    ],
                    "repo": "https://github.com/leejo/CGI.pm",
                    "versions": [
                        {
                            "lessThan": "5.00",
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "CGI versions before 5.00 for Perl allow the POSTDATA, PUTDATA, PATCHDATA and XForms:Model parameters to be set from the query string or form fields.\n\nCGI stores a non-form request body under POSTDATA, PUTDATA or PATCHDATA, and an XForms body under XForms:Model, but also accepts these names from the query string, a form field or a multipart part, so an application cannot tell a client-sent value from the real body.\n\nA cross-site HTML form can post POSTDATA={\"admin\":true} to an endpoint that reads JSON from param('POSTDATA'), a request forgery that needs no CORS preflight."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-352",
                            "description": "CWE-352 Cross-Site Request Forgery (CSRF)",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
                "shortName": "CPANSec",
                "dateUpdated": "2026-11-03T23:40:33.770Z"
            },
            "references": [
                {
                    "tags": [
                        "technical-description"
                    ],
                    "url": "https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm"
                },
                {
                    "tags": [
                        "release-notes"
                    ],
                    "url": "https://metacpan.org/release/LEEJO/CGI-5.00/changes"
                },
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/leejo/CGI.pm/commit/bc4022f553301014e522133ba1e1f4e49e3bef08.patch"
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Upgrade to CGI 5.00 or later."
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "CGI versions before 5.00 for Perl allow the POSTDATA, PUTDATA, PATCHDATA and XForms:Model parameters to be set from the query string or form fields",
            "workarounds": [
                {
                    "lang": "en",
                    "value": "For deployments that cannot upgrade, check the request Content-Type before trusting param('POSTDATA')."
                }
            ],
            "x_generator": {
                "engine": "cpansec-cna-tool 0.1"
            }
        }
    }
}