CVE-2026-3657
The My Sticky Bar plugin for WordPress is vulnerable to SQL injection via the `stickymenu_contact_lead_form` AJAX action in all versions up to, and including, 2.8.6. This is due to the handler using attacker-controlled POST parameter names directly as SQL column identifiers in `$wpdb->insert()`. While parameter values are sanitized with `esc_sql()` and `sanitize_text_field()`, the parameter keys are used as-is to build the column list in the INSERT statement. This makes it possible for unauthenticated attackers to inject SQL via crafted parameter names, enabling blind time-based data extraction from the database.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.56%
- Percentil entre todas las CVEs puntuadas: 44
- 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
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1005Data from Local Systemcollection90 % - Impacto secundario
T1565.001Stored Data Manipulationimpact70 %
Plugin WordPress expuesto públicamente (AV:N, PR:N) vulnerable a SQLi en parámetros POST; permite lectura ciega de datos (C:H) y manipulación potencial de registros insertados.
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-89
Referencias
- https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu.php#L2001
- https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu.php#L2386
- https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu.php#L2396
- https://plugins.trac.wordpress.org/browser/mystickymenu/trunk/mystickymenu.php#L2386
- https://plugins.trac.wordpress.org/changeset?old_path=/mystickymenu/tags/2.8.6&new_path=/mystickymenu/tags/2.8.7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/05d633f5-151a-4462-a6a0-5a638d7c3404?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-3657",
"cveTags": [],
"metrics": {
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{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-3657",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-03-12T13:14:16.775598Z"
}
}
],
"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:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "premio",
"product": "My Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu)",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "2.8.6"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-03-12T03:15:57.923",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu.php#L2001",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu.php#L2386",
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{
"url": "https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu.php#L2396",
"source": "security@wordfence.com"
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"source": "security@wordfence.com"
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{
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{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/05d633f5-151a-4462-a6a0-5a638d7c3404?source=cve",
"source": "security@wordfence.com"
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],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-89"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The My Sticky Bar plugin for WordPress is vulnerable to SQL injection via the `stickymenu_contact_lead_form` AJAX action in all versions up to, and including, 2.8.6. This is due to the handler using attacker-controlled POST parameter names directly as SQL column identifiers in `$wpdb->insert()`. While parameter values are sanitized with `esc_sql()` and `sanitize_text_field()`, the parameter keys are used as-is to build the column list in the INSERT statement. This makes it possible for unauthenticated attackers to inject SQL via crafted parameter names, enabling blind time-based data extraction from the database."
},
{
"lang": "es",
"value": "El plugin My Sticky Bar para WordPress es vulnerable a inyección SQL a través de la acción AJAX 'stickymenu_contact_lead_form' en todas las versiones hasta la 2.8.6, inclusive. Esto se debe a que el gestor utiliza nombres de parámetros POST controlados por el atacante directamente como identificadores de columna SQL en '$wpdb->insert()'. Si bien los valores de los parámetros se sanean con 'esc_sql()' y 'sanitize_text_field()', las claves de los parámetros se utilizan tal cual para construir la lista de columnas en la sentencia INSERT. Esto hace posible que atacantes no autenticados inyecten SQL a través de nombres de parámetros manipulados, lo que permite la extracción ciega de datos basada en tiempo de la base de datos."
}
],
"lastModified": "2026-06-17T10:43:55.690",
"sourceIdentifier": "security@wordfence.com"
}