Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/71014?format=api",
    "vulnerability_id": "VCID-5trw-sssh-q7hz",
    "summary": "A Host Header Poisoning vulnerability exists in Monica 4.1.2 due to improper handling of the HTTP Host header in app/Providers/AppServiceProvider.php, combined with the default misconfiguration where the \"app.force_url\" is not set and default is \"false\". The application generates absolute URLs (such as those used in password reset emails) using the user-supplied Host header. This allows remote attackers to poison the password reset link sent to a victim,",
    "aliases": [
        {
            "alias": "CVE-2026-26747"
        }
    ],
    "fixed_packages": [],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-26747",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00081",
                    "scoring_system": "epss",
                    "scoring_elements": "0.23806",
                    "published_at": "2026-06-11T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-26747"
        },
        {
            "reference_url": "https://github.com/hungnqdz/cve-research/blob/main/CVE-2026-26747.md",
            "reference_id": "CVE-2026-26747.md",
            "reference_type": "",
            "scores": [
                {
                    "value": "9.1",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-23T20:36:32Z/"
                }
            ],
            "url": "https://github.com/hungnqdz/cve-research/blob/main/CVE-2026-26747.md"
        },
        {
            "reference_url": "https://github.com/monicahq/monica",
            "reference_id": "monica",
            "reference_type": "",
            "scores": [
                {
                    "value": "9.1",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-23T20:36:32Z/"
                }
            ],
            "url": "https://github.com/monicahq/monica"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": "9.1 - 9.1",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-5trw-sssh-q7hz"
}