CVE-2022-50907
e107 CMS version 3.2.1 contains a file upload vulnerability that allows authenticated administrative users to bypass upload restrictions and execute PHP files. Attackers can upload malicious PHP files to parent directories by manipulating the upload URL parameter, enabling remote code execution through the Media Manager import feature.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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
- Puntuación base: 8.6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.22%
- Percentil entre todas las CVEs puntuadas: 68
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement75 % - Impacto principal
T1505.003Web Shellpersistence80 % - Impacto secundario
T1059Command and Scripting Interpreterexecution75 %
Acceso a red (AV:N) con PR:H requiere privilegios remotos previos, típico de T1210 (servicios remotos). La carga de PHP en directorios permite web shell (T1505.003) y ejecución de código (T1059).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-434
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2022-50907",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2022-50907",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-01-14T16:32:11.669231Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "disclosure@vulncheck.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.2
},
{
"type": "Secondary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.2
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "disclosure@vulncheck.com",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 8.6,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "HIGH",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
}
]
},
"affected": [
{
"source": "disclosure@vulncheck.com",
"affectedData": [
{
"vendor": "e107",
"product": "e107 CMS",
"versions": [
{
"status": "affected",
"version": "3.2.1"
}
]
}
]
}
],
"published": "2026-01-13T23:15:53.440",
"references": [
{
"url": "https://e107.org/",
"tags": [
"Product"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://e107.org/download",
"tags": [
"Product"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://www.exploit-db.com/exploits/50910",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://www.vulncheck.com/advisories/e-cms-admin-upload-restriction-bypass-rce",
"tags": [
"Third Party Advisory"
],
"source": "disclosure@vulncheck.com"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "disclosure@vulncheck.com",
"description": [
{
"lang": "en",
"value": "CWE-434"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "e107 CMS version 3.2.1 contains a file upload vulnerability that allows authenticated administrative users to bypass upload restrictions and execute PHP files. Attackers can upload malicious PHP files to parent directories by manipulating the upload URL parameter, enabling remote code execution through the Media Manager import feature."
},
{
"lang": "es",
"value": "e107 CMS versión 3.2.1 contiene una vulnerabilidad de carga de archivos que permite a usuarios administrativos autenticados eludir las restricciones de carga y ejecutar archivos PHP. Los atacantes pueden cargar archivos PHP maliciosos en directorios padre manipulando el parámetro URL de carga, lo que permite la ejecución remota de código a través de la función de importación del Administrador de Medios."
}
],
"lastModified": "2026-06-17T05:24:23.910",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:e107:e107:3.2.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B1CF95DE-65CF-490D-9817-616CF704B16B"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "disclosure@vulncheck.com"
}