cvelist/2021/32xxx/CVE-2021-32702.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-32702",
        "STATE": "PUBLIC",
        "TITLE": "Reflected XSS from the callback handler's error query parameter"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "nextjs-auth0",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 1.4.2"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "auth0"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. Versions before and including `1.4.1` are vulnerable to reflected XSS. An attacker can execute arbitrary code by providing an XSS payload in the `error` query parameter which is then processed by the callback handler as an error message. You are affected by this vulnerability if you are using `@auth0/nextjs-auth0` version `1.4.1` or lower **unless** you are using custom error handling that does not return the error message in an HTML response. Upgrade to version `1.4.1` to resolve. The fix adds basic HTML escaping to the error message and it should not impact your users."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-954c-jjx6-cxv7",
                "refsource": "CONFIRM",
                "url": "https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-954c-jjx6-cxv7"
            },
            {
                "name": "https://github.com/auth0/nextjs-auth0/commit/6996e2528ceed98627caa28abafbc09e90163ccf",
                "refsource": "MISC",
                "url": "https://github.com/auth0/nextjs-auth0/commit/6996e2528ceed98627caa28abafbc09e90163ccf"
            },
            {
                "name": "https://www.npmjs.com/package/@auth0/nextjs-auth0",
                "refsource": "MISC",
                "url": "https://www.npmjs.com/package/@auth0/nextjs-auth0"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-954c-jjx6-cxv7",
        "discovery": "UNKNOWN"
    }
}