Package Instance

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{
    "url": "http://public2.vulnerablecode.io/api/packages/61019?format=api",
    "purl": "pkg:npm/notevil@1.3.3",
    "type": "npm",
    "namespace": "",
    "name": "notevil",
    "version": "1.3.3",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": true,
    "next_non_vulnerable_version": null,
    "latest_non_vulnerable_version": null,
    "affected_by_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/42727?format=api",
            "vulnerability_id": "VCID-echx-vz3r-ryfq",
            "summary": "Sandbox escape in notevil and argencoders-notevil\nThis affects all versions of package notevil; all versions of package argencoders-notevil. It is vulnerable to Sandbox Escape leading to Prototype pollution. The package fails to restrict access to the main context, allowing an attacker to add or modify an object's prototype. **Note:** This vulnerability derives from an incomplete fix in [SNYK-JS-NOTEVIL-608878](https://security.snyk.io/vuln/SNYK-JS-NOTEVIL-608878).",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-23771",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.00304",
                            "scoring_system": "epss",
                            "scoring_elements": "0.53975",
                            "published_at": "2026-06-04T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-23771"
                },
                {
                    "reference_url": "https://github.com/mmckegg/notevil",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/mmckegg/notevil"
                },
                {
                    "reference_url": "https://snyk.io/vuln/SNYK-JS-ARGENCODERSNOTEVIL-2388587",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://snyk.io/vuln/SNYK-JS-ARGENCODERSNOTEVIL-2388587"
                },
                {
                    "reference_url": "https://snyk.io/vuln/SNYK-JS-NOTEVIL-2385946",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://snyk.io/vuln/SNYK-JS-NOTEVIL-2385946"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23771",
                    "reference_id": "CVE-2021-23771",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23771"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-8g4m-cjm2-96wq",
                    "reference_id": "GHSA-8g4m-cjm2-96wq",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://github.com/advisories/GHSA-8g4m-cjm2-96wq"
                }
            ],
            "fixed_packages": [],
            "aliases": [
                "CVE-2021-23771",
                "GHSA-8g4m-cjm2-96wq"
            ],
            "risk_score": 3.1,
            "exploitability": "0.5",
            "weighted_severity": "6.2",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-echx-vz3r-ryfq"
        }
    ],
    "fixing_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/53476?format=api",
            "vulnerability_id": "VCID-8bst-w9fp-7faa",
            "summary": "Sandbox Breakout / Prototype Pollution in notevil\nVersions of `notevil` are vulnerable to Sandbox Escape leading to Prototype pollution. The package fails to restrict access to the main context, allowing attacker to add or modify an object's prototype.\n\nEvaluating the payload ```try{a[b];}catch(e){e.constructor.constructor('return __proto__.arguments.callee.__proto__.polluted=true')()}``` add the `polluted` property to Function.",
            "references": [
                {
                    "reference_url": "https://www.npmjs.com/advisories/1338",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://www.npmjs.com/advisories/1338"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-9gxr-rhx6-4jgv",
                    "reference_id": "GHSA-9gxr-rhx6-4jgv",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://github.com/advisories/GHSA-9gxr-rhx6-4jgv"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/61019?format=api",
                    "purl": "pkg:npm/notevil@1.3.3",
                    "is_vulnerable": true,
                    "affected_by_vulnerabilities": [
                        {
                            "vulnerability": "VCID-echx-vz3r-ryfq"
                        }
                    ],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/notevil@1.3.3"
                }
            ],
            "aliases": [
                "GHSA-9gxr-rhx6-4jgv",
                "GMS-2020-411"
            ],
            "risk_score": null,
            "exploitability": null,
            "weighted_severity": null,
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-8bst-w9fp-7faa"
        }
    ],
    "risk_score": "3.1",
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/notevil@1.3.3"
}