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    "cveMetadata": {
        "cveId": "CVE-2026-67399",
        "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "state": "PUBLISHED",
        "assignerShortName": "hackerone",
        "dateReserved": "2026-07-29T15:00:02.294Z",
        "datePublished": "2026-09-14T20:53:05.620Z",
        "dateUpdated": "2026-09-15T13:28:24.720Z"
    },
    "containers": {
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                    "lang": "en",
                    "value": "Deserialization of untrusted data in WHMCS 9.0.0 before 9.0.8 and 8.0.0 before 8.13.7 allows remote attackers to execute arbitrary code."
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            ],
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                    "defaultStatus": "unaffected",
                    "vendor": "WebPros",
                    "product": "WHMCS",
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                            "versionType": "semver"
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                            "lessThan": "8.13.7",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://help.whmcs.com/m/125386/l/2118034-cve-2026-67399-whmcs-security-update-2026-09-03"
                }
            ],
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                        "baseScore": 9.3,
                        "baseSeverity": "CRITICAL"
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                            "cweId": "CWE-502",
                            "description": "CWE-502 Deserialization of Untrusted Data"
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                }
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            "credits": [
                {
                    "lang": "en",
                    "value": "azizk (@realazizk)",
                    "type": "reporter"
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-15T13:28:16.542784Z",
                                "id": "CVE-2026-67399",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
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                                        "Technical Impact": "total"
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                                "role": "CISA Coordinator",
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                "title": "CISA ADP Vulnrichment",
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