Lookup for vulnerable packages by Package URL.

GET /api/packages/33292?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/packages/33292?format=api",
    "purl": "pkg:npm/ckeditor@4.0.0",
    "type": "npm",
    "namespace": "",
    "name": "ckeditor",
    "version": "4.0.0",
    "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/56687?format=api",
            "vulnerability_id": "VCID-c8r2-wpf3-47f9",
            "summary": "CKEditor 4 ReDoS Vulnerability\nIt was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-26271",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69867",
                            "published_at": "2026-04-01T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69964",
                            "published_at": "2026-04-21T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69982",
                            "published_at": "2026-04-18T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69972",
                            "published_at": "2026-04-16T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69929",
                            "published_at": "2026-04-13T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69943",
                            "published_at": "2026-04-12T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69959",
                            "published_at": "2026-04-11T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69935",
                            "published_at": "2026-04-09T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69919",
                            "published_at": "2026-04-08T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69871",
                            "published_at": "2026-04-07T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69894",
                            "published_at": "2026-04-04T12:55:00Z"
                        },
                        {
                            "value": "0.00617",
                            "scoring_system": "epss",
                            "scoring_elements": "0.69879",
                            "published_at": "2026-04-02T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-26271"
                },
                {
                    "reference_url": "https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first"
                },
                {
                    "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26271",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26271"
                },
                {
                    "reference_url": "https://github.com/ckeditor/ckeditor4",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/ckeditor/ckeditor4"
                },
                {
                    "reference_url": "https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26271",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26271"
                },
                {
                    "reference_url": "https://web.archive.org/web/20210128132707/https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://web.archive.org/web/20210128132707/https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first"
                },
                {
                    "reference_url": "https://www.oracle.com//security-alerts/cpujul2021.html",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
                },
                {
                    "reference_url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
                },
                {
                    "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982587",
                    "reference_id": "982587",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982587"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-jv4c-7jqq-m34x",
                    "reference_id": "GHSA-jv4c-7jqq-m34x",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "MODERATE",
                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/advisories/GHSA-jv4c-7jqq-m34x"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/569327?format=api",
                    "purl": "pkg:npm/ckeditor@4.16.0",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor@4.16.0"
                }
            ],
            "aliases": [
                "CVE-2021-26271",
                "GHSA-jv4c-7jqq-m34x"
            ],
            "risk_score": 3.1,
            "exploitability": "0.5",
            "weighted_severity": "6.2",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-c8r2-wpf3-47f9"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/34364?format=api",
            "vulnerability_id": "VCID-h5zz-wz8f-2uf6",
            "summary": "Inclusion of Functionality from Untrusted Control Sphere in CKEditor 4\nIt was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin).",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-26272",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.65943",
                            "published_at": "2026-04-01T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.66056",
                            "published_at": "2026-04-21T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.66068",
                            "published_at": "2026-04-18T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.66054",
                            "published_at": "2026-04-16T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.66018",
                            "published_at": "2026-04-13T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.66049",
                            "published_at": "2026-04-12T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.66061",
                            "published_at": "2026-04-11T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.66042",
                            "published_at": "2026-04-09T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.6603",
                            "published_at": "2026-04-08T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.6598",
                            "published_at": "2026-04-07T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.66014",
                            "published_at": "2026-04-04T12:55:00Z"
                        },
                        {
                            "value": "0.00502",
                            "scoring_system": "epss",
                            "scoring_elements": "0.65985",
                            "published_at": "2026-04-02T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-26272"
                },
                {
                    "reference_url": "https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3",
                            "scoring_elements": ""
                        },
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first"
                },
                {
                    "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26272",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26272"
                },
                {
                    "reference_url": "https://github.com/ckeditor/ckeditor4",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/ckeditor/ckeditor4"
                },
                {
                    "reference_url": "https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26272",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26272"
                },
                {
                    "reference_url": "https://www.oracle.com/security-alerts/cpujan2022.html",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://www.oracle.com/security-alerts/cpujan2022.html"
                },
                {
                    "reference_url": "https://www.oracle.com//security-alerts/cpujul2021.html",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
                },
                {
                    "reference_url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
                },
                {
                    "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982587",
                    "reference_id": "982587",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982587"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-wpvm-wqr4-p7cw",
                    "reference_id": "GHSA-wpvm-wqr4-p7cw",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "MODERATE",
                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/advisories/GHSA-wpvm-wqr4-p7cw"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/569327?format=api",
                    "purl": "pkg:npm/ckeditor@4.16.0",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor@4.16.0"
                }
            ],
            "aliases": [
                "CVE-2021-26272",
                "GHSA-wpvm-wqr4-p7cw"
            ],
            "risk_score": 3.1,
            "exploitability": "0.5",
            "weighted_severity": "6.2",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-h5zz-wz8f-2uf6"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/16848?format=api",
            "vulnerability_id": "VCID-k7qp-c6vp-sqbg",
            "summary": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')\nCKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered affecting Iframe Dialog and Media Embed packages. The vulnerability may trigger a JavaScript code after fulfilling special conditions: using one of the affected packages on a web page with missing proper Content Security Policy configuration; initializing the editor on an element and using an element other than `<textarea>` as a base; and destroying the editor instance. This vulnerability might affect a small percentage of integrators that depend on dynamic editor initialization/destroy mechanism. A fix is available in CKEditor4 version 4.21.0. In some rare cases, a security fix may be considered a breaking change. Starting from version 4.21.0, the Iframe Dialog plugin applies the `sandbox` attribute by default, which restricts JavaScript code execution in the iframe element. To change this behavior, configure the `config.iframe_attributes` option. Also starting from version 4.21.0, the Media Embed plugin regenerates the entire content of the embed widget by default. To change this behavior, configure the `config.embed_keepOriginalContent` option. Those who choose to enable either of the more permissive options or who cannot upgrade to a patched version should properly configure Content Security Policy to avoid any potential security issues that may arise from embedding iframe elements on their web page.",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2023-28439",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.0031",
                            "scoring_system": "epss",
                            "scoring_elements": "0.54139",
                            "published_at": "2026-04-04T12:55:00Z"
                        },
                        {
                            "value": "0.0031",
                            "scoring_system": "epss",
                            "scoring_elements": "0.5411",
                            "published_at": "2026-04-02T12:55:00Z"
                        },
                        {
                            "value": "0.0031",
                            "scoring_system": "epss",
                            "scoring_elements": "0.54166",
                            "published_at": "2026-04-08T12:55:00Z"
                        },
                        {
                            "value": "0.0031",
                            "scoring_system": "epss",
                            "scoring_elements": "0.54115",
                            "published_at": "2026-04-07T12:55:00Z"
                        },
                        {
                            "value": "0.0036",
                            "scoring_system": "epss",
                            "scoring_elements": "0.58204",
                            "published_at": "2026-04-21T12:55:00Z"
                        },
                        {
                            "value": "0.0036",
                            "scoring_system": "epss",
                            "scoring_elements": "0.58221",
                            "published_at": "2026-04-09T12:55:00Z"
                        },
                        {
                            "value": "0.0036",
                            "scoring_system": "epss",
                            "scoring_elements": "0.58238",
                            "published_at": "2026-04-11T12:55:00Z"
                        },
                        {
                            "value": "0.0036",
                            "scoring_system": "epss",
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            "summary": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')\nCKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4 prior to version 4.18.0. The vulnerability allows someone to inject malformed HTML bypassing content sanitization, which could result in executing JavaScript code. This problem has been patched in version 4.18.0. There are currently no known workarounds.",
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