CVE-2026-86801
The To Do List Member WordPress plugin from 1.4 through 1.6 ships a file upload endpoint that does not load WordPress and therefore applies no authentication, capability or nonce check of any kind, and validates only the name of an uploaded file rather than its content, allowing unauthenticated users to store active content served from the site's own origin, and to list and delete the files already staged there.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.51%
- Percentil entre todas las CVEs puntuadas: 42
- 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
T1203Exploitation for Client Executionexecution75 % - Impacto principal
T1505.003Web Shellpersistence85 % - Impacto secundario
T1078Valid Accountsstealth · persistence · privilege escalation · initial access60 % - Impacto secundario
T1565.001Stored Data Manipulationimpact55 %
Endpoint sin autenticación permite carga de contenido activo (web shell) servido desde el sitio; UI:R indica interacción del usuario (descarga/acceso al archivo malicioso). CWE-306 (falta de verificación de autenticidad) sostiene la explotación sin credenciales.
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-306
Referencias
JSON original (NVD)
Mostrar
{
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"metrics": {
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{
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"ssvcData": {
"id": "CVE-2026-86801",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-09-17T12:09:42.617797Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "contact@wpscan.com",
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"version": "3.1",
"baseScore": 8.8,
"attackVector": "NETWORK",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "contact@wpscan.com",
"affectedData": [
{
"vendor": "Unknown",
"product": "To Do List Member",
"versions": [
{
"status": "affected",
"version": "1.4",
"versionType": "semver",
"lessThanOrEqual": "1.6"
}
],
"collectionURL": "https://wordpress.org/plugins",
"defaultStatus": "unknown"
}
]
}
],
"published": "2026-09-17T07:16:28.413",
"references": [
{
"url": "https://wpscan.com/vulnerability/baebde16-141c-4de4-8ecb-173c25bed40d/",
"source": "contact@wpscan.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
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"description": [
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"value": "The To Do List Member WordPress plugin from 1.4 through 1.6 ships a file upload endpoint that does not load WordPress and therefore applies no authentication, capability or nonce check of any kind, and validates only the name of an uploaded file rather than its content, allowing unauthenticated users to store active content served from the site's own origin, and to list and delete the files already staged there."
}
],
"lastModified": "2026-09-18T19:08:32.830",
"sourceIdentifier": "contact@wpscan.com"
}