CVE-2026-3445
The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to unauthorized membership payment bypass in all versions up to, and including, 4.16.11. This is due to a missing ownership verification on the `change_plan_sub_id` parameter in the `process_checkout()` function. This makes it possible for authenticated attackers, with subscriber level access and above, to reference another user's active subscription during checkout to manipulate proration calculations, allowing them to obtain paid lifetime membership plans without payment via the `ppress_process_checkout` AJAX action.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
- Puntuación base: 7.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.31%
- Percentil entre todas las CVEs puntuadas: 22
- 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
T1078Valid Accountsstealth · persistence · privilege escalation · initial access85 % - Impacto secundario
T1565.001Stored Data Manipulationimpact70 %
CWE-862 (falta de verificación de propiedad) permite a atacantes autenticados manipular parámetros de suscripción ajena en checkout AJAX para obtener membresías de pago sin pagar, variando acceso/permisos (T1078) y manipulando datos de transacción (T1565.001). AV:N + PR:L dicta T1210 (servicios remo
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-862
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-3445",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-3445",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-04-06T17:51:27.565573Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "LOW"
},
"impactScore": 4.2,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "properfraction",
"product": "Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "4.16.11"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-04-04T09:16:20.330",
"references": [
{
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3474509%40wp-user-avatar%2Ftrunk&old=3473639%40wp-user-avatar%2Ftrunk&sfp_email=&sfph_mail=#file3",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ae1e198b-0c0d-47aa-8a56-ec4e790c8022?source=cve",
"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-862"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to unauthorized membership payment bypass in all versions up to, and including, 4.16.11. This is due to a missing ownership verification on the `change_plan_sub_id` parameter in the `process_checkout()` function. This makes it possible for authenticated attackers, with subscriber level access and above, to reference another user's active subscription during checkout to manipulate proration calculations, allowing them to obtain paid lifetime membership plans without payment via the `ppress_process_checkout` AJAX action."
},
{
"lang": "es",
"value": "El plugin Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content - ProfilePress para WordPress es vulnerable a una elusión de pago de membresía no autorizada en todas las versiones hasta la 4.16.11, inclusive. Esto se debe a una verificación de propiedad faltante en el parámetro 'change_plan_sub_id' en la función 'process_checkout()'. Esto hace posible que atacantes autenticados, con acceso de nivel de suscriptor y superior, hagan referencia a la suscripción activa de otro usuario durante el proceso de pago para manipular los cálculos de prorrateo, lo que les permite obtener planes de membresía de por vida pagados sin pago a través de la acción AJAX 'ppress_process_checkout'."
}
],
"lastModified": "2026-07-21T19:10:00.107",
"sourceIdentifier": "security@wordfence.com"
}