{
    "id": "CVE-2026-56290",
    "published": "2026-06-29 15:16:42",
    "last_modified": "2026-07-24 13:31:02",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-434",
    "description": "Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0 - The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.",
    "epss_score": "0.30866",
    "epss_percentile": "0.98196",
    "kev": 1,
    "kev_due": "2026-07-10",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:43:14",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2026-07-10."
    },
    "products": [
        {
            "vendor": "joomlack",
            "product": "page_builder_ck"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2026-56290",
        "date_added": "2026-07-07",
        "due_date": "2026-07-10",
        "vendor": "Joomlack",
        "product": "Page Builder",
        "name": "Joomlack Page Builder Improper Access Control Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "52626",
            "title": "Joomla Page Builder CK  3.5.10 -  Arbitrary File Upload",
            "date": "2026-07-08",
            "url": "https://www.exploit-db.com/exploits/52626"
        }
    ],
    "refs_list": [
        "https://www.joomlack.fr/",
        "https://forum.joomlack.fr/index.php/page-builder-ck/21627-nouvelle-version-de-pbck-et-joomla-3",
        "https://mysites.guru/blog/pagebuilderck-unauthenticated-file-upload-rce/",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-56290"
    ]
}