CVE-2026-107751
El complemento Mang Board para WordPress es vulnerable a Cross-Site Scripting almacenado (XSS) a través del parámetro 'user_name' en todas las versiones hasta la 2.4.3 inclusive, debido a una desinfección de entrada y un escape de salida insuficientes. Esto permite que atacantes no autenticados inyecten secuencias de comandos web arbitrarias en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada. El sanitizador de guardado mbw_htmlspecialchars2() es ineficaz frente a este vector, ya que la carga de explotación se basa únicamente en una sintaxis de atributos HTML sin comillas que utiliza solo espacios, caracteres alfanuméricos y caracteres como =, paréntesis y puntos, ninguno de los cuales se escapa.
Traducción automática del texto original de NVD (en inglés).
CVSS
- Puntuación base
- 7.2
- Versión
- 3.1
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 0.32 %
- Percentil entre todas las CVEs puntuadas
- 24
- Fecha de la puntuación
- 20/10/2026
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
T1190Exploit Public-Facing Applicationinitial access60 % - Impacto principal
T1059.007JavaScriptexecution55 %
Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.
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-79
Referencias
Mostrar las 8 referencias
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/api/mb-board.php#L24
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/functions/func.api.php#L146
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/mb-actions.php#L520
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/skin-filters.php#L50
- https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/templates/tpl.button.php#L75
- https://plugins.trac.wordpress.org/changeset/3738898/mangboard/trunk/templates/tpl.button.php
- https://wordpress.org/plugins/mangboard/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/72650c92-918a-4486-9365-11bcb6b6741a?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-107751",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-107751",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-10-15T10:51:53.462624Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "kitae-park",
"product": "Mang Board",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "2.4.3"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-10-14T08:17:04.570",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/api/mb-board.php#L24",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/functions/func.api.php#L146",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/mb-actions.php#L520",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/skin-filters.php#L50",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/templates/tpl.button.php#L75",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3738898/mangboard/trunk/templates/tpl.button.php",
"source": "security@wordfence.com"
},
{
"url": "https://wordpress.org/plugins/mangboard/",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/72650c92-918a-4486-9365-11bcb6b6741a?source=cve",
"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Mang Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'user_name' parameter in all versions up to, and including, 2.4.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The save-time sanitizer mbw_htmlspecialchars2() is ineffective against this vector because the exploit payload relies solely on unquoted HTML attribute syntax using only spaces, alphanumerics, and characters such as =, parentheses, and dots — none of which are escaped."
}
],
"lastModified": "2026-10-15T17:17:13.353",
"sourceIdentifier": "security@wordfence.com"
}