CVE-2026-15782
The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via OptinMonster Integration data-sitekey Attribute in Post Content in all versions up to, and including, 2.0.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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Exploitation requires the OptinMonster plugin to be installed and configured with an active inline campaign that outputs matching #om-{id} markup on the target page, as the WPForms handler only fires when OptinMonster emits its 'om.Campaign.load' event.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
- Puntuación base: 4.9
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.29%
- Percentil entre todas las CVEs puntuadas: 20
- 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).
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/wpforms-lite/tags/1.10.0.4/assets/js/frontend/wpforms.min.js#L5
- https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.2.1/assets/js/frontend/wpforms.min.js#L5
- https://plugins.trac.wordpress.org/changeset/3610719/wpforms-lite/trunk/assets/js/frontend/wpforms.min.js?old=3586095&old_path=wpforms-lite%2Ftrunk%2Fassets%2Fjs%2Ffrontend%2Fwpforms.min.js
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6d5264a1-dabf-4630-9871-ab6e14817768?source=cve
JSON original (NVD)
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{
"id": "CVE-2026-15782",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-15782",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-07-21T13:27:39.279188Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 4.9,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "smub",
"product": "WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "2.0.0.1"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-07-21T06:16:28.210",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/assets/js/frontend/wpforms.min.js#L5",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.2.1/assets/js/frontend/wpforms.min.js#L5",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3610719/wpforms-lite/trunk/assets/js/frontend/wpforms.min.js?old=3586095&old_path=wpforms-lite%2Ftrunk%2Fassets%2Fjs%2Ffrontend%2Fwpforms.min.js",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6d5264a1-dabf-4630-9871-ab6e14817768?source=cve",
"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via OptinMonster Integration data-sitekey Attribute in Post Content in all versions up to, and including, 2.0.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the OptinMonster plugin to be installed and configured with an active inline campaign that outputs matching #om-{id} markup on the target page, as the WPForms handler only fires when OptinMonster emits its 'om.Campaign.load' event."
}
],
"lastModified": "2026-07-21T16:54:45.743",
"sourceIdentifier": "security@wordfence.com"
}