CVE-2026-3835
The Prevent Direct Access – Protect WordPress Files plugin for WordPress is vulnerable to unauthorized access of protected files due to insufficient token validation in the `get_advance_file_by_url()` method in all versions up to, and including, 2.8.8.8 The method uses a SQL `LIKE` operator for token lookup without escaping wildcard characters via `$wpdb->esc_like()`. This makes it possible for unauthenticated attackers to bypass the private token requirement by supplying SQL wildcard characters (such as `%`) as the token value, matching any record in the plugin's file table and downloading any protected file.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Puntuación base: 5.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.47%
- Percentil entre todas las CVEs puntuadas: 39
- 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-285
Referencias
- https://plugins.trac.wordpress.org/browser/prevent-direct-access/tags/2.8.8.4/includes/repository.php#L221
- https://plugins.trac.wordpress.org/browser/prevent-direct-access/trunk/download.php#L377
- https://plugins.trac.wordpress.org/browser/prevent-direct-access/trunk/includes/repository.php#L221
- https://plugins.trac.wordpress.org/changeset/3637499/prevent-direct-access/trunk/includes/repository.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fprevent-direct-access/tags/2.8.8.8&new_path=%2Fprevent-direct-access/tags/2.8.8.9
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3637502%40prevent-direct-access%2Ftags%2F2.8.8.9&old=3524320%40prevent-direct-access%2Ftags%2F2.8.8.8
- https://wordpress.org/plugins/prevent-direct-access/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c39d16f1-ce80-402c-8a36-f9070dc5f9c9?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-3835",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-3835",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-08-13T13:46:11.280786Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 1.4,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "buildwps",
"product": "Prevent Direct Access – Protect WordPress Files",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "2.8.8.8"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-08-13T06:17:38.353",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/prevent-direct-access/tags/2.8.8.4/includes/repository.php#L221",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/prevent-direct-access/trunk/download.php#L377",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/prevent-direct-access/trunk/includes/repository.php#L221",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3637499/prevent-direct-access/trunk/includes/repository.php",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Fprevent-direct-access/tags/2.8.8.8&new_path=%2Fprevent-direct-access/tags/2.8.8.9",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=&new=3637502%40prevent-direct-access%2Ftags%2F2.8.8.9&old=3524320%40prevent-direct-access%2Ftags%2F2.8.8.8",
"source": "security@wordfence.com"
},
{
"url": "https://wordpress.org/plugins/prevent-direct-access/",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c39d16f1-ce80-402c-8a36-f9070dc5f9c9?source=cve",
"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-285"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Prevent Direct Access – Protect WordPress Files plugin for WordPress is vulnerable to unauthorized access of protected files due to insufficient token validation in the `get_advance_file_by_url()` method in all versions up to, and including, 2.8.8.8 The method uses a SQL `LIKE` operator for token lookup without escaping wildcard characters via `$wpdb->esc_like()`. This makes it possible for unauthenticated attackers to bypass the private token requirement by supplying SQL wildcard characters (such as `%`) as the token value, matching any record in the plugin's file table and downloading any protected file."
}
],
"lastModified": "2026-08-14T19:09:56.813",
"sourceIdentifier": "security@wordfence.com"
}