FreePBX: Authenticated Access can lead to Subsequent OAuth2 Authentication Bypass in API Module_CVE-2026-44237

{
    "lastseen": "",
    "description": "FreePBX is an open source IP PBX. Prior to 17.0.8, the FreePBX api module's OAuth2 implementation does not sufficiently validate client credentials during token issuance. Knowledge of a valid client_id is required. The validateClient() method in ClientRepository.php unconditionally returns true, allowing any party with knowledge of a valid client_id to obtain OAuth2 access tokens without providing the correct client_secret. This vulnerability is fixed in 17.0.8.",
    "published": "2026-05-29T12:46:22.613Z",
    "modified": "2026-05-29T12:46:22.613Z",
    "type": "cve",
    "title": "FreePBX: Authenticated Access can lead to Subsequent OAuth2 Authentication Bypass in API Module",
    "source": "GitHub_M",
    "references": "https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vgjf-4h63-8vcc",
    "id": "CVE-2026-44237",
    "bulletinFamily": "",
    "cwe": [
        "CWE-1390"
    ],
    "cvelist": null,
    "sourceData": "FreePBX security-reporting < 17.0.8",
    "sourceHref": "",
    "cvss": {
        "score": 7.6,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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": "security-reporting",
    "version": "< 17.0.8",
    "vendor": "FreePBX",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}