CVE-2026-3645
The Punnel – Landing Page Builder plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.1. The save_config() function, which handles the 'punnel_save_config' AJAX action, lacks any capability check (current_user_can()) and nonce verification. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's entire configuration including the API key via a POST request to admin-ajax.php.
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Once the API key is known (because the attacker set it), the attacker can use the plugin's public API endpoint (sniff_requests() at /?punnel_api=1) — which only validates requests by comparing a POST token against the stored api_key — to create, update, or delete arbitrary posts, pages, and products on the site.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Puntuación base: 5.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.51%
- Percentil entre todas las CVEs puntuadas: 41
- 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).
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
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L118
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L156
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L179
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L403
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L410
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L118
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L156
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L179
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L403
- https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L410
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b6f54ca4-297f-44e8-8bb3-25cdc52f94ff?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-3645",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-3645",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-03-24T13:55:38.136142Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 1.4,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "punnel",
"product": "Punnel – Landing Page Builder",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.3.1"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-03-21T04:17:33.017",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L118",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L156",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L179",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L403",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L410",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L118",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L156",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L179",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L403",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L410",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b6f54ca4-297f-44e8-8bb3-25cdc52f94ff?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 Punnel – Landing Page Builder plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.1. The save_config() function, which handles the 'punnel_save_config' AJAX action, lacks any capability check (current_user_can()) and nonce verification. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's entire configuration including the API key via a POST request to admin-ajax.php. Once the API key is known (because the attacker set it), the attacker can use the plugin's public API endpoint (sniff_requests() at /?punnel_api=1) — which only validates requests by comparing a POST token against the stored api_key — to create, update, or delete arbitrary posts, pages, and products on the site."
},
{
"lang": "es",
"value": "El plugin Punnel – Landing Page Builder para WordPress es vulnerable a la falta de autorización en todas las versiones hasta la 1.3.1, inclusive. La función save_config(), que maneja la acción AJAX 'punnel_save_config', carece de cualquier verificación de capacidad (current_user_can()) y verificación de nonce. Esto hace posible que atacantes autenticados, con acceso de nivel Suscriptor y superior, sobrescriban la configuración completa del plugin, incluyendo la clave API, a través de una solicitud POST a admin-ajax.php. Una vez que la clave API es conocida (porque el atacante la configuró), el atacante puede usar el endpoint API público del plugin (sniff_requests() en /?punnel_api=1) — que solo valida las solicitudes comparando un token POST con la api_key almacenada — para crear, actualizar o eliminar publicaciones, páginas y productos arbitrarios en el sitio."
}
],
"lastModified": "2026-06-17T10:43:55.057",
"sourceIdentifier": "security@wordfence.com"
}