{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-6551",
        "ASSIGNER": "cvd@cert.pl",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "As a simple library, class.upload.php does not perform an in-depth check on uploaded files, allowing a stored XSS vulnerability when the default configuration is used. \n\n\nDevelopers must be aware of that fact and use extension whitelisting accompanied by forcing the server to always provide content-type based on the file extension. \n\n\nThe README has been updated to include these guidelines."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-434 Unrestricted Upload of File with Dangerous Type",
                        "cweId": "CWE-434"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "class.upload.php",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "class.upload.php",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "lessThanOrEqual": "*",
                                                        "status": "affected",
                                                        "version": "0",
                                                        "versionType": "semver"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://cert.pl/posts/2024/01/CVE-2023-6551",
                "refsource": "MISC",
                "name": "https://cert.pl/posts/2024/01/CVE-2023-6551"
            },
            {
                "url": "https://cert.pl/en/posts/2024/01/CVE-2023-6551",
                "refsource": "MISC",
                "name": "https://cert.pl/en/posts/2024/01/CVE-2023-6551"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.1.0-dev"
    },
    "source": {
        "discovery": "UNKNOWN"
    },
    "credits": [
        {
            "lang": "en",
            "value": "Krzysztof Zaj\u0105c (CERT.PL)"
        }
    ]
}