Joomla Extension – joomlack.fr – Unauthenticated file upload in Page Builder CK extension < 3.6.0_CVE-2026-56290

{
    "lastseen": "",
    "description": "The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.",
    "published": "2026-06-29T14:31:37.952Z",
    "modified": "2026-06-29T14:31:37.952Z",
    "type": "cve",
    "title": "Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0",
    "source": "Joomla",
    "references": "https://www.joomlack.fr/",
    "id": "CVE-2026-56290",
    "bulletinFamily": "",
    "cwe": [
        "CWE-284"
    ],
    "cvelist": null,
    "sourceData": "joomlack.fr JoomlaCK.fr Page Builder CK extension for Joomla 1.0-3.6.0",
    "sourceHref": "",
    "cvss": {
        "score": 10,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red",
        "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": "JoomlaCK.fr Page Builder CK extension for Joomla",
    "version": "1.0-3.6.0",
    "vendor": "joomlack.fr",
    "ai_description": "Unauthenticated arbitrary file upload vulnerability in Page Builder CK extension for Joomla, allowing full RCE.",
    "ai_severity": "Critical",
    "ai_vendor": "joomlack.fr",
    "ai_product": "Page Builder CK extension for Joomla",
    "ai_version": "1.0-3.6.0",
    "ai_score": 10
}