Vvveb CMS v1.0.8 Remote Code Execution via Media Management_CVE-2026-6257

{
    "lastseen": "",
    "description": "Vvveb CMS v1.0.8 contains a remote code execution vulnerability in its media management functionality where a missing return statement in the file rename handler allows authenticated attackers to rename files to blocked extensions .php or .htaccess. Attackers can exploit this logic flaw by first uploading a text file and renaming it to .htaccess to inject Apache directives that register PHP-executable MIME types, then uploading another file and renaming it to .php to execute arbitrary operating system commands as the www-data user.",
    "published": "2026-04-20T19:09:45.927Z",
    "modified": "2026-04-20T19:09:45.927Z",
    "type": "cve",
    "title": "Vvveb CMS v1.0.8 Remote Code Execution via Media Management",
    "source": "VulnCheck",
    "references": "https://github.com/givanz/Vvveb/commit/6fb8eaa998265e33e8802cbc220d8859dbc144f2\nhttps://www.vulncheck.com/advisories/vvveb-cms-remote-code-execution-via-media-management",
    "id": "CVE-2026-6257",
    "bulletinFamily": "",
    "cwe": [
        "CWE-434"
    ],
    "cvelist": null,
    "sourceData": "Vvveb Vvveb CMS 1.0.8",
    "sourceHref": "",
    "cvss": {
        "score": 9.2,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:H/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": "Vvveb CMS",
    "version": "1.0.8",
    "vendor": "Vvveb",
    "ai_description": "Remote code execution vulnerability in media management functionality",
    "ai_severity": "Critical",
    "ai_vendor": "Vvveb",
    "ai_product": "Vvveb CMS",
    "ai_version": "1.0.8",
    "ai_score": 9.2
}