Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/105864?format=api",
    "vulnerability_id": "VCID-eg3u-uaqx-m7f2",
    "summary": "WordPress before 5.8 lacks support for the Update URI plugin header. This makes it easier for remote attackers to execute arbitrary code via a supply-chain attack against WordPress installations that use any plugin for which the slug satisfies the naming constraints of the WordPress.org Plugin Directory but is not yet present in that directory.",
    "aliases": [
        {
            "alias": "CVE-2021-44223"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/135368?format=api",
            "purl": "pkg:deb/debian/wordpress@5.8.1%2Bdfsg1-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@5.8.1%252Bdfsg1-1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/509832?format=api",
            "purl": "pkg:deb/debian/wordpress@6.1.9%2Bdfsg1-0%2Bdeb12u1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-sjsv-4uy2-aqct"
                },
                {
                    "vulnerability": "VCID-v95d-ak24-uqbz"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@6.1.9%252Bdfsg1-0%252Bdeb12u1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/135228?format=api",
            "purl": "pkg:deb/debian/wordpress@6.1.9%2Bdfsg1-0%2Bdeb12u1?distro=trixie",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-sjsv-4uy2-aqct"
                },
                {
                    "vulnerability": "VCID-v95d-ak24-uqbz"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@6.1.9%252Bdfsg1-0%252Bdeb12u1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/135232?format=api",
            "purl": "pkg:deb/debian/wordpress@6.8.3%2Bdfsg1-0%2Bdeb13u1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@6.8.3%252Bdfsg1-0%252Bdeb13u1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/135231?format=api",
            "purl": "pkg:deb/debian/wordpress@6.9.4%2Bdfsg1-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@6.9.4%252Bdfsg1-1%3Fdistro=trixie"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/5698?format=api",
            "purl": "pkg:deb/debian/wordpress@5.7.11%2Bdfsg1-0%2Bdeb11u1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-1jjh-thmp-8qd6"
                },
                {
                    "vulnerability": "VCID-b682-wkpy-7ffj"
                },
                {
                    "vulnerability": "VCID-eg3u-uaqx-m7f2"
                },
                {
                    "vulnerability": "VCID-k1mb-d89c-hfah"
                },
                {
                    "vulnerability": "VCID-m7wf-su66-w3ck"
                },
                {
                    "vulnerability": "VCID-sjsv-4uy2-aqct"
                },
                {
                    "vulnerability": "VCID-v95d-ak24-uqbz"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@5.7.11%252Bdfsg1-0%252Bdeb11u1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/135230?format=api",
            "purl": "pkg:deb/debian/wordpress@5.7.11%2Bdfsg1-0%2Bdeb11u1?distro=trixie",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-eg3u-uaqx-m7f2"
                },
                {
                    "vulnerability": "VCID-sjsv-4uy2-aqct"
                },
                {
                    "vulnerability": "VCID-v95d-ak24-uqbz"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@5.7.11%252Bdfsg1-0%252Bdeb11u1%3Fdistro=trixie"
        }
    ],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-44223",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96516",
                    "published_at": "2026-06-04T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96519",
                    "published_at": "2026-06-05T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-44223"
        },
        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44223",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44223"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": "0.5",
    "weighted_severity": "0.2",
    "risk_score": 0.1,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-eg3u-uaqx-m7f2"
}