CVE-2026-5400
The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Media field filter values in versions up to, and including, 4.5.13 This is due to insufficient input sanitization of nested array values in the user_meta_save() function and unsafe output of filter CSS values in the render() function without proper escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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: 0.42%
- Percentil entre todas las CVEs puntuadas: 34
- Fecha de la puntuación: 30/9/2026
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://github.com/reduxframework/redux-framework/pull/4112/changes
- https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034
- https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L233
- https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L337
- https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034
- https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L233
- https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L337
- https://plugins.trac.wordpress.org/changeset/3688279/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3688279%40redux-framework%2Ftags%2F4.5.14&old=3582185%40redux-framework%2Ftags%2F4.5.13
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ca5b1ff6-19c5-4384-ae63-faf1f40122e7?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-5400",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-5400",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-09-19T13:25:56.982054Z"
}
}
],
"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": "davidanderson",
"product": "Redux Framework",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "4.5.13"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-09-19T08:16:54.190",
"references": [
{
"url": "https://github.com/reduxframework/redux-framework/pull/4112/changes",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L233",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L337",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L233",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L337",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3688279/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=&new=3688279%40redux-framework%2Ftags%2F4.5.14&old=3582185%40redux-framework%2Ftags%2F4.5.13",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ca5b1ff6-19c5-4384-ae63-faf1f40122e7?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 Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Media field filter values in versions up to, and including, 4.5.13 This is due to insufficient input sanitization of nested array values in the user_meta_save() function and unsafe output of filter CSS values in the render() function without proper escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
}
],
"lastModified": "2026-09-21T13:33:33.387",
"sourceIdentifier": "security@wordfence.com"
}