CVE-2026-15797
The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via post_title in all versions up to, and including, 1.24.0 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. This requires the attacker to create a post with an HTML entity-encoded payload in the title, which bypasses sanitize_text_field on save and is later decoded and executed by the browser when rendered by the Select2 component.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Puntuación base: 6.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.26%
- Percentil entre todas las CVEs puntuadas: 16
- 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 access75 % - Impacto principal
T1059.007JavaScriptexecution80 % - Impacto secundario
T1566.002Spearphishing Linkinitial access65 %
Vulnerabilidad XS almacenado (CWE-79) en plugin WordPress explotable por atacantes autenticados (PR:L) vía inyección en post_title; permite ejecución de scripts arbitrarios (T1059.007) y potencial phishing a usuarios (T1566.002).
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/popup-maker/tags/1.22.0/classes/Admin/Ajax.php#L152
- https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Admin/Ajax.php#L163
- https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Helpers.php#L192
- https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/dist/assets/admin-general.js#L1
- https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Admin/Ajax.php#L152
- https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Admin/Ajax.php#L163
- https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Helpers.php#L192
- https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/dist/assets/admin-general.js#L1
- https://plugins.trac.wordpress.org/changeset/3690634/popup-maker/trunk/classes/Admin/Ajax.php
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3690634%40popup-maker%2Ftags%2F1.25.0&old=3648112%40popup-maker%2Ftags%2F1.24.0
- https://www.wordfence.com/threat-intel/vulnerabilities/id/973b23c6-4edd-4f89-b5cf-68e83cfdb8ac?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-15797",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-15797",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-09-19T13:22:06.905574Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 6.4,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 3.1
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "danieliser",
"product": "Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.24.0"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-09-18T10:17:06.133",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Admin/Ajax.php#L152",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Admin/Ajax.php#L163",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Helpers.php#L192",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/dist/assets/admin-general.js#L1",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Admin/Ajax.php#L152",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Admin/Ajax.php#L163",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Helpers.php#L192",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/dist/assets/admin-general.js#L1",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3690634/popup-maker/trunk/classes/Admin/Ajax.php",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=&new=3690634%40popup-maker%2Ftags%2F1.25.0&old=3648112%40popup-maker%2Ftags%2F1.24.0",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/973b23c6-4edd-4f89-b5cf-68e83cfdb8ac?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 Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via post_title in all versions up to, and including, 1.24.0 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. This requires the attacker to create a post with an HTML entity-encoded payload in the title, which bypasses sanitize_text_field on save and is later decoded and executed by the browser when rendered by the Select2 component."
}
],
"lastModified": "2026-09-19T15:16:58.477",
"sourceIdentifier": "security@wordfence.com"
}