CVE-2026-96561
The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.8.0 This is due to a chain of missing input neutralization and output escaping across the /mwai-ui/v1/chats/submit REST endpoint, the PHP error-log parser (MeowKit_MWAI_Helpers::php_error_logs), the Advisor task (Meow_MWAI_Modules_Advisor::run_advisor), and the Advisor dashboard widget (advisor_metabox): the server-parameter denylist in chat_submit strips only exact key names such as 'model' while convert_keys() later canonicalizes 'model_' back to 'model', allowing an unauthenticated caller to place an attacker-controlled string (including CR/LF) into $query->model; final_checks() throws an Exception whose message embeds that raw string, and the non-streaming, non-admin catch branch writes it to the PHP error log unmodified — creating a forged log line that the plugin's own parser subsequently returns as recent PHP-error content; run_advisor() then appends that content verbatim to the AI prompt (indirect prompt injection — CWE-1427), the returned JSON is stored in the mwai_advisor_data option with no schema validation or HTML sanitization, and advisor_metabox() concatenates the resulting 'title' and 'description' values directly into the WordPress dashboard widget without esc_html(), wp_kses(), or equivalent escaping.
Leer descripción completaMostrar menos
This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses the WordPress dashboard.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Puntuación base: 7.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.33%
- Percentil entre todas las CVEs puntuadas: 24
- 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
T1059.007JavaScriptexecution90 %
Plugin WordPress vulnerable a XSS almacenado (CWE-79) explotable sin autenticación (AV:N/PR:N) permite inyección de scripts en el dashboard; vector CVSS expone aplicación web expuesta.
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-79
Referencias
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/engines/core.php#L533
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/advisor.php#L156
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/advisor.php#L162
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/advisor.php#L216
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/chatbot.php#L122
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/chatbot.php#L299
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/chatbot.php#L597
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/query/base.php#L360
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/rest.php#L464
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/common/helpers.php#L251
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fai-engine%2Ftags%2F3.8.0&new_path=%2Fai-engine%2Ftags%2F3.8.1
- https://www.wordfence.com/threat-intel/vulnerabilities/id/910e51da-6ee2-45d5-837b-7fea80f79390?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-96561",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-96561",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-10-01T14:17:52.566760Z"
}
}
],
"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": "tigroumeow",
"product": "AI Engine – The Chatbot, AI Framework & MCP for WordPress",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "3.8.0"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-10-01T04:18:22.110",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/engines/core.php#L533",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/advisor.php#L156",
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{
"url": "https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/advisor.php#L162",
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{
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"source": "security@wordfence.com"
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{
"url": "https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/chatbot.php#L122",
"source": "security@wordfence.com"
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{
"url": "https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/chatbot.php#L299",
"source": "security@wordfence.com"
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{
"url": "https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/chatbot.php#L597",
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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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"source": "security@wordfence.com"
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{
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{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/910e51da-6ee2-45d5-837b-7fea80f79390?source=cve",
"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
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}
],
"descriptions": [
{
"lang": "en",
"value": "The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.8.0 This is due to a chain of missing input neutralization and output escaping across the /mwai-ui/v1/chats/submit REST endpoint, the PHP error-log parser (MeowKit_MWAI_Helpers::php_error_logs), the Advisor task (Meow_MWAI_Modules_Advisor::run_advisor), and the Advisor dashboard widget (advisor_metabox): the server-parameter denylist in chat_submit strips only exact key names such as 'model' while convert_keys() later canonicalizes 'model_' back to 'model', allowing an unauthenticated caller to place an attacker-controlled string (including CR/LF) into $query->model; final_checks() throws an Exception whose message embeds that raw string, and the non-streaming, non-admin catch branch writes it to the PHP error log unmodified — creating a forged log line that the plugin's own parser subsequently returns as recent PHP-error content; run_advisor() then appends that content verbatim to the AI prompt (indirect prompt injection — CWE-1427), the returned JSON is stored in the mwai_advisor_data option with no schema validation or HTML sanitization, and advisor_metabox() concatenates the resulting 'title' and 'description' values directly into the WordPress dashboard widget without esc_html(), wp_kses(), or equivalent escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses the WordPress dashboard."
}
],
"lastModified": "2026-10-01T15:17:37.143",
"sourceIdentifier": "security@wordfence.com"
}