Remote Code Execution in extension “Content Element Selector” (ceselector)_CVE-2026-46725

{
    "lastseen": "",
    "description": "The extension passes an attacker-controlled cookie directly to PHP's unserialize() without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server. Exploitation requires the content element to be configured with \"Persistent Mode: Static\" in the plugin settings.",
    "published": "2026-05-19T09:25:33.489Z",
    "modified": "2026-05-19T09:25:33.489Z",
    "type": "cve",
    "title": "Remote Code Execution in extension \"Content Element Selector\" (ceselector)",
    "source": "TYPO3",
    "references": "https://typo3.org/security/advisory/typo3-ext-sa-2026-013",
    "id": "CVE-2026-46725",
    "bulletinFamily": "",
    "cwe": [
        "CWE-502"
    ],
    "cvelist": null,
    "sourceData": "TYPO3 Extension \"Content Element Selector\" 6.0.0\nTYPO3 Extension \"Content Element Selector\" 5.0.0\nTYPO3 Extension \"Content Element Selector\" 4.0.0\nTYPO3 Extension \"Content Element Selector\" 0",
    "sourceHref": "",
    "cvss": {
        "score": 9.2,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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": "Extension \"Content Element Selector\"",
    "version": "6.0.0, 5.0.0, 4.0.0, 0",
    "vendor": "TYPO3",
    "ai_description": "Remote Code Execution vulnerability in the Content Element Selector extension due to insufficient input validation, allowing an attacker to execute arbitrary code on the TYPO3 server.",
    "ai_severity": "Critical",
    "ai_vendor": "TYPO3",
    "ai_product": "Content Element Selector",
    "ai_version": "6.0.0, 5.0.0, 4.0.0, 0",
    "ai_score": 9.2
}