CVE-2026-4388
The Form Maker by 10Web plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Matrix field (Text Box input type) in form submissions in all versions up to, and including, 1.15.40. This is due to insufficient input sanitization (`sanitize_text_field` strips tags but not quotes) and missing output escaping when rendering submission data in the admin Submissions view. This makes it possible for unauthenticated attackers to inject arbitrary JavaScript through a form submission that executes in the browser of an administrator who views the submission details.
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: 0.40%
- Percentil entre todas las CVEs puntuadas: 33
- 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 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
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.37/admin/views/FormMakerSubmits.php#L166
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.37/admin/views/FormMakerSubmits.php#L169
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.37/frontend/models/form_maker.php#L2352
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3501693%40form-maker%2Ftrunk&old=3492680%40form-maker%2Ftrunk&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/197449f5-9304-49df-9261-a354145fc00e?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-4388",
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"metrics": {
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{
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"ssvcData": {
"id": "CVE-2026-4388",
"role": "CISA Coordinator",
"options": [
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"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-04-14T14:02:24.488962Z"
}
}
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"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
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"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": "10web",
"product": "Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.15.40"
}
],
"defaultStatus": "unaffected"
}
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}
],
"published": "2026-04-14T03:16:08.720",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.37/admin/views/FormMakerSubmits.php#L166",
"source": "security@wordfence.com"
},
{
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},
{
"url": "https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.37/frontend/models/form_maker.php#L2352",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3501693%40form-maker%2Ftrunk&old=3492680%40form-maker%2Ftrunk&sfp_email=&sfph_mail=",
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{
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"source": "security@wordfence.com"
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],
"vulnStatus": "Deferred",
"weaknesses": [
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"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
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}
],
"descriptions": [
{
"lang": "en",
"value": "The Form Maker by 10Web plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Matrix field (Text Box input type) in form submissions in all versions up to, and including, 1.15.40. This is due to insufficient input sanitization (`sanitize_text_field` strips tags but not quotes) and missing output escaping when rendering submission data in the admin Submissions view. This makes it possible for unauthenticated attackers to inject arbitrary JavaScript through a form submission that executes in the browser of an administrator who views the submission details."
}
],
"lastModified": "2026-06-17T10:56:30.377",
"sourceIdentifier": "security@wordfence.com"
}