CVE-2026-2471
The WP Mail Logging plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.15.0 via deserialization of untrusted input from the email log message field. This is due to the `BaseModel` class constructor calling `maybe_unserialize()` on all properties retrieved from the database without validation. This makes it possible for unauthenticated attackers to inject a PHP Object by submitting a double-serialized payload through any public-facing form that sends email (e.g., Contact Form 7).
Leer descripción completaMostrar menos
When the email is logged and subsequently viewed by an administrator, the malicious payload is deserialized into an arbitrary PHP object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.39%
- Percentil entre todas las CVEs puntuadas: 31
- Fecha de la puntuación: 5/10/2026
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 Executionexecution85 % - Impacto principal
T1059Command and Scripting Interpreterexecution75 % - Impacto secundario
T1005Data from Local Systemcollection60 % - Impacto secundario
T1565Data Manipulationimpact65 %
Vector CVSS con UI:R (requiere interacción del usuario) → T1203. PHP Object Injection mediante doble serialización permite RCE si existe POP chain (T1059), manipulación de datos (T1565) o acceso a datos sensibles (T1005).
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-502
Referencias
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/lib/vendor/brandonwamboldt/wp-orm/src/BaseModel.php#L39
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/src/Renderer/WPML_MailRenderer_AJAX_Handler.php#L100
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/src/WPML_Plugin.php#L553
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3464813%40wp-mail-logging&old=3358334%40wp-mail-logging&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/10e4c52d-c82f-4393-9a56-5714b3a108d1?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-2471",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-2471",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-03-02T19:40:13.816210Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.6
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "smub",
"product": "WP Mail Logging",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.15.0"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-02-28T07:15:57.677",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/lib/vendor/brandonwamboldt/wp-orm/src/BaseModel.php#L39",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/src/Renderer/WPML_MailRenderer_AJAX_Handler.php#L100",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/src/WPML_Plugin.php#L553",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3464813%40wp-mail-logging&old=3358334%40wp-mail-logging&sfp_email=&sfph_mail=",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/10e4c52d-c82f-4393-9a56-5714b3a108d1?source=cve",
"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-502"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The WP Mail Logging plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.15.0 via deserialization of untrusted input from the email log message field. This is due to the `BaseModel` class constructor calling `maybe_unserialize()` on all properties retrieved from the database without validation. This makes it possible for unauthenticated attackers to inject a PHP Object by submitting a double-serialized payload through any public-facing form that sends email (e.g., Contact Form 7). When the email is logged and subsequently viewed by an administrator, the malicious payload is deserialized into an arbitrary PHP object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present."
},
{
"lang": "es",
"value": "El plugin WP Mail Logging para WordPress es vulnerable a la inyección de objetos PHP en todas las versiones hasta la 1.15.0, inclusive, a través de la deserialización de entrada no confiable desde el campo de mensaje del registro de correo electrónico. Esto se debe a que el constructor de la clase 'BaseModel' llama a 'maybe_unserialize()' en todas las propiedades recuperadas de la base de datos sin validación. Esto hace posible que atacantes no autenticados inyecten un objeto PHP al enviar una carga útil doblemente serializada a través de cualquier formulario público que envíe correo electrónico (por ejemplo, Contact Form 7). Cuando el correo electrónico es registrado y posteriormente visto por un administrador, la carga útil maliciosa es deserializada en un objeto PHP arbitrario. No hay una cadena POP conocida presente en el software vulnerable, lo que significa que esta vulnerabilidad no tiene impacto a menos que otro plugin o tema que contenga una cadena POP esté instalado en el sitio. Si una cadena POP está presente a través de un plugin o tema adicional instalado en el sistema objetivo, puede permitir al atacante realizar acciones como eliminar archivos arbitrarios, recuperar datos sensibles o ejecutar código, dependiendo de la cadena POP presente."
}
],
"lastModified": "2026-06-17T10:31:07.760",
"sourceIdentifier": "security@wordfence.com"
}