CVE-2026-15291
The Chat Help – Click to Chat Button & Form plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.1.3 via the REST API endpoints /wp-json/chat-help/v1/leads and /wp-json/chat-help/v1/leads/{id}. This is due to the plugin not performing any authentication and authorization checks. This makes it possible for unauthenticated attackers to extract sensitive data including customer names, email addresses, phone numbers, WhatsApp messages, complete geolocation data (IP addresses, city, country, ISP, coordinates), device fingerprinting information (browser, OS, screen resolution), and WordPress account credentials (user IDs, usernames, emails, names) for logged-in users who submit forms.
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: 0.66%
- Percentil entre todas las CVEs puntuadas: 50
- 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
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1552Unsecured Credentialscredential access95 % - Impacto secundario
T1005Data from Local Systemcollection85 % - Impacto secundario
T1078Valid Accountsstealth · persistence · privilege escalation · initial access90 %
REST API sin autenticación expuesto en la red (AV:N, PR:N, UI:N) permite acceso directo a datos sensibles: credenciales WordPress, información personal y geolocalización de usuarios.
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
- https://plugins.trac.wordpress.org/browser/chat-help/tags/3.1.1/src/Admin/Leads.php#L149
- https://plugins.trac.wordpress.org/browser/chat-help/tags/3.1.1/src/Admin/Leads.php#L157
- https://plugins.trac.wordpress.org/browser/chat-help/tags/3.1.1/src/Admin/Leads.php#L207
- https://plugins.trac.wordpress.org/browser/chat-help/tags/3.1.1/src/Admin/Leads.php#L234
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3394141%40chat-help%2Ftrunk&old=3390862%40chat-help%2Ftrunk&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/91654765-6631-4eb4-9971-32b7db7933e1?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-15291",
"cveTags": [],
"metrics": {
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{
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"role": "CISA Coordinator",
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{
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{
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],
"version": "2.0.3",
"timestamp": "2026-07-10T13:16:31.518029Z"
}
}
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"cvssMetricV31": [
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"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
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"affectedData": [
{
"vendor": "themeatelier",
"product": "ChatHelp – Click to Chat Button, WooCommerce Chat to Order & Floating Chat Form",
"versions": [
{
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"version": "0",
"versionType": "semver",
"lessThanOrEqual": "3.1.3"
}
],
"defaultStatus": "unaffected"
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],
"published": "2026-07-10T05:16:32.430",
"references": [
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{
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"source": "security@wordfence.com"
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{
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"source": "security@wordfence.com"
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{
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{
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"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
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"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-862"
}
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}
],
"descriptions": [
{
"lang": "en",
"value": "The Chat Help – Click to Chat Button & Form plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.1.3 via the REST API endpoints /wp-json/chat-help/v1/leads and /wp-json/chat-help/v1/leads/{id}. This is due to the plugin not performing any authentication and authorization checks. This makes it possible for unauthenticated attackers to extract sensitive data including customer names, email addresses, phone numbers, WhatsApp messages, complete geolocation data (IP addresses, city, country, ISP, coordinates), device fingerprinting information (browser, OS, screen resolution), and WordPress account credentials (user IDs, usernames, emails, names) for logged-in users who submit forms."
}
],
"lastModified": "2026-07-10T15:43:30.330",
"sourceIdentifier": "security@wordfence.com"
}