phpMyFAQ – Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint_CVE-2026-45010

{
    "lastseen": "",
    "description": "phpMyFAQ before 4.1.2 contains an improper restriction of excessive authentication attempts vulnerability in the /admin/check endpoint, which accepts arbitrary user-id parameters without session binding or rate limiting. Unauthenticated attackers can brute-force any user's six-digit TOTP code by submitting POST requests with sequential token values, bypassing two-factor authentication to gain full administrative access.",
    "published": "2026-05-15T18:36:37.522Z",
    "modified": "2026-05-15T18:36:37.522Z",
    "type": "cve",
    "title": "phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint",
    "source": "VulnCheck",
    "references": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9pq7-mfwh-xx2j\nhttps://www.vulncheck.com/advisories/phpmyfaq-unauthenticated-two-factor-authentication-brute-force-via-admin-check-endpoint",
    "id": "CVE-2026-45010",
    "bulletinFamily": "",
    "cwe": [
        "CWE-307"
    ],
    "cvelist": null,
    "sourceData": "thorsten phpmyfaq 0",
    "sourceHref": "",
    "cvss": {
        "score": 9.1,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
        "version": "3.1"
    },
    "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": "phpmyfaq",
    "version": "0",
    "vendor": "thorsten",
    "ai_description": "Unauthenticated brute-force vulnerability in phpMyFAQ's /admin/check endpoint, allowing attackers to bypass two-factor authentication and gain administrative access.",
    "ai_severity": "Critical",
    "ai_vendor": "Thorsten",
    "ai_product": "phpMyFAQ",
    "ai_version": "before 4.1.2",
    "ai_score": 9.1
}