CVE-2023-4140
Estado: ModificadaAlta (8.8)—
The WP Ultimate CSV Importer plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 7.9.8 due to insufficient restriction on the 'get_header_values' function. This makes it possible for authenticated attackers, with minimal permissions such as an author, if the administrator previously grants access in the plugin settings, to modify their user role by supplying the 'wp_capabilities->cus1' parameter.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.79%
- Percentil entre todas las CVEs puntuadas: 55
- 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)
CWE
- CWE-269
Referencias
- https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/7.9.6/importExtensions/ImportHelpers.php#L205
- https://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5fdba41f-daa5-44e8-bc47-aa8b7bd31054?source=cve
- https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/7.9.6/importExtensions/ImportHelpers.php#L205
- https://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5fdba41f-daa5-44e8-bc47-aa8b7bd31054?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2023-4140",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-4140",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2025-02-05T18:35:59.430870Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.6,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 0.7
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "smackcoders",
"product": "WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "7.9.8"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2023-08-04T03:15:14.000",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/7.9.6/importExtensions/ImportHelpers.php#L205",
"tags": [
"Release Notes"
],
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.php",
"tags": [
"Patch"
],
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5fdba41f-daa5-44e8-bc47-aa8b7bd31054?source=cve",
"tags": [
"Third Party Advisory"
],
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/7.9.6/importExtensions/ImportHelpers.php#L205",
"tags": [
"Release Notes"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.php",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5fdba41f-daa5-44e8-bc47-aa8b7bd31054?source=cve",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-269"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The WP Ultimate CSV Importer plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 7.9.8 due to insufficient restriction on the 'get_header_values' function. This makes it possible for authenticated attackers, with minimal permissions such as an author, if the administrator previously grants access in the plugin settings, to modify their user role by supplying the 'wp_capabilities->cus1' parameter."
},
{
"lang": "es",
"value": "El plugin Plugin WP Ultimate CSV Importer para WordPress es vulnerable a la escalada de privilegios en versiones hasta, e incluyendo, la v7.9.8 debido a una restricción insuficiente en la función \"get_header_values\". Esto hace posible que atacantes autenticados, con permisos mínimos como un autor, si el administrador previamente concede acceso en la configuración del plugin, modifiquen su rol de usuario suministrando el parámetro \"wp_capabilities->cus1\". "
}
],
"lastModified": "2026-06-17T06:37:10.010",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:smackcoders:wp_ultimate_csv_importer:*:*:*:*:*:wordpress:*:*",
"vulnerable": true,
"matchCriteriaId": "2BACF95B-CCFA-4546-8EA3-FA00D8679F4E",
"versionEndIncluding": "7.9.8"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security@wordfence.com"
}