{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ASSIGNER": "report@snyk.io",
        "DATE_PUBLIC": "2022-08-02T13:22:34.794204Z",
        "ID": "CVE-2021-23385",
        "STATE": "PUBLIC",
        "TITLE": "Open Redirect"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Flask-Security",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": ">=",
                                            "version_value": "0"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Open Redirect"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234",
                "name": "https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234"
            },
            {
                "refsource": "MISC",
                "url": "https://github.com/mattupstate/flask-security",
                "name": "https://github.com/mattupstate/flask-security"
            },
            {
                "refsource": "MISC",
                "url": "https://snyk.io/blog/url-confusion-vulnerabilities/",
                "name": "https://snyk.io/blog/url-confusion-vulnerabilities/"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20230828 [SECURITY] [DLA 3545-1] flask-security security update",
                "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00034.html"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\\\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using 'autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore."
            }
        ]
    },
    "impact": {
        "cvss": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "REQUIRED",
            "scope": "UNCHANGED",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "availabilityImpact": "NONE"
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Noam Moshe of Claroty"
        }
    ]
}