CVE-2026-12409
The Landing Page Builder – Coming Soon page, Maintenance Mode, Lead Page, WordPress Landing Pages plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.5.3.6. This is due to missing or incorrect nonce validation on the ulpb_admin_ajax function. This makes it possible for unauthenticated attackers to create, update, retitle, or change the post status, slug, and type of arbitrary posts and write ULPB_DATA post meta via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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This attack requires the victim to hold an editor-level or administrator session, as the wp_ajax_ulpb_admin_data action enforces a capability check that the forged request must satisfy by inheriting the logged-in user's session cookies.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- Puntuación base: 4.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.19%
- Percentil entre todas las CVEs puntuadas: 8
- 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-352
Referencias
- https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L111
- https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L19
- https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L111
- https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L19
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3444409%40page-builder-add&new=3444409%40page-builder-add
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a2b2dd36-eca8-4d80-80f5-783f9402dd3c?source=cve
JSON original (NVD)
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{
"id": "CVE-2026-12409",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-12409",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-07-17T12:37:20.388635Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 4.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 1.4,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "umarbajwa",
"product": "Landing Page Builder – Coming Soon page, Maintenance Mode, Lead Page, WordPress Landing Pages",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.5.3.6"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-07-16T04:17:14.213",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L111",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.5/admin/classes/ajax-requests-class.php#L19",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L111",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/page-builder-add/tags/1.5.3.6/admin/classes/ajax-requests-class.php#L19",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3444409%40page-builder-add&new=3444409%40page-builder-add",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a2b2dd36-eca8-4d80-80f5-783f9402dd3c?source=cve",
"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-352"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Landing Page Builder – Coming Soon page, Maintenance Mode, Lead Page, WordPress Landing Pages plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.5.3.6. This is due to missing or incorrect nonce validation on the ulpb_admin_ajax function. This makes it possible for unauthenticated attackers to create, update, retitle, or change the post status, slug, and type of arbitrary posts and write ULPB_DATA post meta via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. This attack requires the victim to hold an editor-level or administrator session, as the wp_ajax_ulpb_admin_data action enforces a capability check that the forged request must satisfy by inheriting the logged-in user's session cookies."
}
],
"lastModified": "2026-07-17T13:17:55.333",
"sourceIdentifier": "security@wordfence.com"
}