Lookup for vulnerable packages by Package URL.

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{
    "url": "http://public2.vulnerablecode.io/api/packages/31273?format=api",
    "purl": "pkg:pypi/psiturk@2.3.4",
    "type": "pypi",
    "namespace": "",
    "name": "psiturk",
    "version": "2.3.4",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": true,
    "next_non_vulnerable_version": "3.2.1",
    "latest_non_vulnerable_version": "3.2.1",
    "affected_by_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/36365?format=api",
            "vulnerability_id": "VCID-fjsm-d7f4-3yde",
            "summary": "A vulnerability has been found in NYUCCL psiTurk up to 3.2.0 and classified as critical. This vulnerability affects unknown code of the file psiturk/experiment.py. The manipulation of the argument mode leads to improper neutralization of special elements used in a template engine. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.1 is able to address this issue. The name of the patch is 47787e15cecd66f2aa87687bf852ae0194a4335f. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-219676.",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-4315",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.00628",
                            "scoring_system": "epss",
                            "scoring_elements": "0.70625",
                            "published_at": "2026-06-04T12:55:00Z"
                        },
                        {
                            "value": "0.00628",
                            "scoring_system": "epss",
                            "scoring_elements": "0.7067",
                            "published_at": "2026-06-09T12:55:00Z"
                        },
                        {
                            "value": "0.00628",
                            "scoring_system": "epss",
                            "scoring_elements": "0.70647",
                            "published_at": "2026-06-08T12:55:00Z"
                        },
                        {
                            "value": "0.00628",
                            "scoring_system": "epss",
                            "scoring_elements": "0.70659",
                            "published_at": "2026-06-07T12:55:00Z"
                        },
                        {
                            "value": "0.00628",
                            "scoring_system": "epss",
                            "scoring_elements": "0.70676",
                            "published_at": "2026-06-06T12:55:00Z"
                        },
                        {
                            "value": "0.00628",
                            "scoring_system": "epss",
                            "scoring_elements": "0.70668",
                            "published_at": "2026-06-05T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-4315"
                },
                {
                    "reference_url": "https://github.com/NYUCCL/psiTurk",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.8",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "8.7",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/NYUCCL/psiTurk"
                },
                {
                    "reference_url": "https://github.com/NYUCCL/psiTurk/commit/47787e15cecd66f2aa87687bf852ae0194a4335f",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.8",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "8.7",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/NYUCCL/psiTurk/commit/47787e15cecd66f2aa87687bf852ae0194a4335f"
                },
                {
                    "reference_url": "https://github.com/NYUCCL/psiTurk/pull/517",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.8",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "8.7",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/NYUCCL/psiTurk/pull/517"
                },
                {
                    "reference_url": "https://github.com/NYUCCL/psiTurk/releases/tag/v3.2.1",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.8",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "8.7",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/NYUCCL/psiTurk/releases/tag/v3.2.1"
                },
                {
                    "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/psiturk/PYSEC-2023-43.yaml",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.8",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "8.7",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/pypa/advisory-database/tree/main/vulns/psiturk/PYSEC-2023-43.yaml"
                },
                {
                    "reference_url": "https://vuldb.com/?ctiid.219676",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.8",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "8.7",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://vuldb.com/?ctiid.219676"
                },
                {
                    "reference_url": "https://vuldb.com/?id.219676",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.8",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "8.7",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://vuldb.com/?id.219676"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4315",
                    "reference_id": "CVE-2021-4315",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "8.8",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                        },
                        {
                            "value": "8.7",
                            "scoring_system": "cvssv4",
                            "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                        },
                        {
                            "value": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4315"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-9mq4-9556-6qxq",
                    "reference_id": "GHSA-9mq4-9556-6qxq",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "HIGH",
                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/advisories/GHSA-9mq4-9556-6qxq"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/31291?format=api",
                    "purl": "pkg:pypi/psiturk@3.2.1",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/psiturk@3.2.1"
                }
            ],
            "aliases": [
                "CVE-2021-4315",
                "GHSA-9mq4-9556-6qxq",
                "PYSEC-2023-43"
            ],
            "risk_score": 4.0,
            "exploitability": "0.5",
            "weighted_severity": "8.0",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-fjsm-d7f4-3yde"
        }
    ],
    "fixing_vulnerabilities": [],
    "risk_score": "4.0",
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/psiturk@2.3.4"
}