{
    "id": "CVE-2021-43405",
    "published": "2021-11-05 18:15:09",
    "last_modified": "2026-06-17 04:10:55",
    "cvss_score": "8.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "cwe": null,
    "description": "An issue was discovered in FusionPBX before 4.5.30. The fax_extension may have risky characters (it is not constrained to be numeric).",
    "epss_score": "0.35628",
    "epss_percentile": "0.98409",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:31",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "fusionpbx",
            "product": "fusionpbx"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "50505",
            "title": "FusionPBX 4.5.29 - Remote Code Execution (RCE) (Authenticated)",
            "date": "2021-11-08",
            "url": "https://www.exploit-db.com/exploits/50505"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/164795/FusionPBX-4.5.29-Remote-Code-Execution.html",
        "https://github.com/fusionpbx/fusionpbx/commit/2d2869c1a1e874c46a8c3c5475614ce769bbbd59",
        "http://packetstormsecurity.com/files/164795/FusionPBX-4.5.29-Remote-Code-Execution.html",
        "https://github.com/fusionpbx/fusionpbx/commit/2d2869c1a1e874c46a8c3c5475614ce769bbbd59"
    ]
}