CVE-2026-46725
Full vulnerability record from the local CVENow database.
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.
Severity
CRITICAL
CVSS score
9.2
(v4.0)
Vulnerability status
Deferred
Source identifier
f4fb688c-4412-4426-b4b8-421ecf27b14a
Published
2026-05-19 10:16:25.457000
Last modified
2026-10-26 13:10:00.140000
View original CVE JSON
{
"id": "CVE-2026-46725",
"sourceIdentifier": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"published": "2026-05-19T10:16:25.457",
"lastModified": "2026-10-26T13:10:00.140",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "La extensión pasa una cookie controlada por el atacante directamente a unserialize() de PHP sin procesar la entrada de forma segura. Un atacante remoto no autenticado puede suministrar una carga útil serializada manipulada para desencadenar una inyección de objetos PHP, lo que lleva a la ejecución remota de código en el servidor TYPO3. La explotación requiere que el elemento de contenido esté configurado con ’Modo Persistente: Estático’ en la configuración del plugin."
}
],
"affected": [
{
"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"affectedData": [
{
"vendor": "TYPO3",
"product": "Extension \"Content Element Selector\"",
"defaultStatus": "unaffected",
"collectionURL": "https://packagist.org/",
"packageName": "mmc/ceselector",
"versions": [
{
"version": "6.0.0",
"lessThan": "6.0.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "5.0.0",
"lessThan": "5.0.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "4.0.0",
"lessThan": "4.0.2",
"versionType": "semver",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.0.3",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-05-19T13:28:39.738439Z",
"id": "CVE-2026-46725",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-502"
}
]
}
],
"references": [
{
"url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-013",
"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a"
}
]
}