Hi.Events 1.9.0 – Unauthenticated Attendee PII Exposure via Check-in List short_id_CVE-2026-57960

{
    "lastseen": "",
    "description": "Hi.Events through 1.9.0 public check-in list endpoints use short_id as sole access control, allowing unauthenticated access to retrieve full attendee lists including emails and personal information. Attackers with knowledge of the short_id can call GET /api/public/check-in-lists/{short_id}/attendees to read attendee data and create or delete check-in records without authentication.",
    "published": "2026-06-29T17:24:27.032Z",
    "modified": "2026-06-29T17:24:27.032Z",
    "type": "cve",
    "title": "Hi.Events 1.9.0 - Unauthenticated Attendee PII Exposure via Check-in List short_id",
    "source": "VulnCheck",
    "references": "https://github.com/HiEventsDev/Hi.Events/issues/1224\nhttps://github.com/HiEventsDev/Hi.Events/pull/1229\nhttps://www.vulncheck.com/advisories/hi-events-unauthenticated-attendee-pii-exposure-via-check-in-list-short-id",
    "id": "CVE-2026-57960",
    "bulletinFamily": "",
    "cwe": [
        "CWE-359"
    ],
    "cvelist": null,
    "sourceData": "HiEventsDev Hi.Events 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.3,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Hi.Events",
    "version": "0",
    "vendor": "HiEventsDev",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}