{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ASSIGNER": "report@snyk.io",
        "DATE_PUBLIC": "2022-05-01T15:20:18.160480Z",
        "ID": "CVE-2022-21189",
        "STATE": "PUBLIC",
        "TITLE": "Prototype Pollution"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "dexie",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_value": "3.2.2"
                                        },
                                        {
                                            "version_affected": ">=",
                                            "version_value": "4.0.0-alpha.1"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_value": "4.0.0-alpha.3"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Prototype Pollution"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://snyk.io/vuln/SNYK-JS-DEXIE-2607042",
                "name": "https://snyk.io/vuln/SNYK-JS-DEXIE-2607042"
            },
            {
                "refsource": "MISC",
                "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2805308",
                "name": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2805308"
            },
            {
                "refsource": "MISC",
                "url": "https://github.com/dexie/Dexie.js/blob/fe682ef24568278c3b31d9d6c93de095d4b77ae8/src/functions/utils.ts%23L134-L164",
                "name": "https://github.com/dexie/Dexie.js/blob/fe682ef24568278c3b31d9d6c93de095d4b77ae8/src/functions/utils.ts%23L134-L164"
            },
            {
                "refsource": "MISC",
                "url": "https://github.com/dexie/Dexie.js/commit/1d655a69b9f28c3af6fae10cf5c61df387dc689b",
                "name": "https://github.com/dexie/Dexie.js/commit/1d655a69b9f28c3af6fae10cf5c61df387dc689b"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The package dexie before 3.2.2, from 4.0.0-alpha.1 and before 4.0.0-alpha.3 are vulnerable to Prototype Pollution in the Dexie.setByKeyPath(obj, keyPath, value) function which does not properly check the keys being set (like __proto__ or constructor). This can allow an attacker to add/modify properties of the Object.prototype leading to prototype pollution vulnerability. **Note:** This vulnerability can occur in multiple ways, for example when modifying a collection with untrusted user input."
            }
        ]
    },
    "impact": {
        "cvss": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "availabilityImpact": "LOW"
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Alessio Della Libera of Snyk Security Team"
        }
    ]
}