Package Instance

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{
    "url": "http://public2.vulnerablecode.io/api/packages/305233?format=api",
    "purl": "pkg:gem/clearance@1.2.1",
    "type": "gem",
    "namespace": "",
    "name": "clearance",
    "version": "1.2.1",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": true,
    "next_non_vulnerable_version": "2.5.0",
    "latest_non_vulnerable_version": "2.5.0",
    "affected_by_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/41452?format=api",
            "vulnerability_id": "VCID-sufe-dup1-2uec",
            "summary": "URL Redirection to Untrusted Site (Open Redirect)\nThis affects the package clearance The vulnerability can be possible when users are able to set the value of `session[:return_to]`.",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-23435",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.00282",
                            "scoring_system": "epss",
                            "scoring_elements": "0.51834",
                            "published_at": "2026-06-04T12:55:00Z"
                        },
                        {
                            "value": "0.00282",
                            "scoring_system": "epss",
                            "scoring_elements": "0.51893",
                            "published_at": "2026-06-05T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-23435"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-4hpq-rjcx-7vj9",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "7.6",
                            "scoring_system": "cvssv3",
                            "scoring_elements": ""
                        },
                        {
                            "value": "7.6",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/advisories/GHSA-4hpq-rjcx-7vj9"
                },
                {
                    "reference_url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/clearance/CVE-2021-23435.yml",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "7.6",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/clearance/CVE-2021-23435.yml"
                },
                {
                    "reference_url": "https://github.com/thoughtbot/clearance",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "7.6",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/thoughtbot/clearance"
                },
                {
                    "reference_url": "https://github.com/thoughtbot/clearance/pull/945",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "7.6",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/thoughtbot/clearance/pull/945"
                },
                {
                    "reference_url": "https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "7.6",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23435",
                    "reference_id": "CVE-2021-23435",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "7.6",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23435"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/58963?format=api",
                    "purl": "pkg:gem/clearance@2.5.0",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/clearance@2.5.0"
                }
            ],
            "aliases": [
                "CVE-2021-23435",
                "GHSA-4hpq-rjcx-7vj9"
            ],
            "risk_score": 4.0,
            "exploitability": "0.5",
            "weighted_severity": "8.0",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-sufe-dup1-2uec"
        }
    ],
    "fixing_vulnerabilities": [],
    "risk_score": "4.0",
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/clearance@1.2.1"
}