{
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ASSIGNER": "security@google.com",
        "ID": "CVE-2021-22540",
        "STATE": "PUBLIC",
        "TITLE": "XSS in Dart SDK"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Dart SDK",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "stable",
                                            "version_value": "2.12.3"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Google LLC"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Vincenzo di Cicco"
        }
    ],
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Bad validation logic in the Dart SDK versions prior to 2.12.3 allow an attacker to use an XSS attack via DOM clobbering. The validation logic in dart:html for creating DOM nodes from text did not sanitize properly when it came across template tags."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-79: Improper Neutralization of Input During Web Page Generation"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/dart-lang/sdk/security/advisories/GHSA-3rfv-4jvg-9522",
                "refsource": "CONFIRM",
                "url": "https://github.com/dart-lang/sdk/security/advisories/GHSA-3rfv-4jvg-9522"
            },
            {
                "name": "https://github.com/dart-lang/sdk/commit/ce5a1c2392debce967415d4c09359ff2555e3588",
                "refsource": "CONFIRM",
                "url": "https://github.com/dart-lang/sdk/commit/ce5a1c2392debce967415d4c09359ff2555e3588"
            }
        ]
    },
    "source": {
        "discovery": "EXTERNAL"
    }
}