Broken Access Control in extension “Frontend User Registration” (sf_register)_CVE-2026-46721

{
    "lastseen": "",
    "description": "The create and edit flows do not restrict which user properties may be submitted and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account, gaining unauthorized access to content and functionality restricted to privileged frontend user groups.",
    "published": "2026-05-19T09:19:10.688Z",
    "modified": "2026-05-19T09:19:10.688Z",
    "type": "cve",
    "title": "Broken Access Control in extension \"Frontend User Registration\" (sf_register)",
    "source": "TYPO3",
    "references": "https://typo3.org/security/advisory/typo3-ext-sa-2026-009",
    "id": "CVE-2026-46721",
    "bulletinFamily": "",
    "cwe": [
        "CWE-915",
        "CWE-639"
    ],
    "cvelist": null,
    "sourceData": "TYPO3 Extension \"Frontend User Registration\" 14.0.0\nTYPO3 Extension \"Frontend User Registration\" 0",
    "sourceHref": "",
    "cvss": {
        "score": 6.9,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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": "Extension \"Frontend User Registration\"",
    "version": "14.0.0",
    "vendor": "TYPO3",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}