FKIE_CVE-2026-6401
Vulnerability from fkie_nvd - Published: 2026-05-20 02:16 - Updated: 2026-07-24 08:10
Severity
Summary
The Bottom Bar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 0.1.7. This is due to missing nonce verification on the plugin's settings update forms handled in bottom-bar-admin.php. None of the three settings forms (main settings, sharing services, restore defaults) include a wp_nonce_field(), and the server-side processing code never calls check_admin_referer() or any equivalent nonce validation before processing POST data and calling update_option(). This makes it possible for unauthenticated attackers to trick a logged-in administrator into submitting a crafted request that updates plugin configuration options, such as changing the language, maximum post counts, or enabled sharing services.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Bottom Bar",
"vendor": "svil4ok",
"versions": [
{
"lessThanOrEqual": "0.1.7",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Bottom Bar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 0.1.7. This is due to missing nonce verification on the plugin\u0027s settings update forms handled in bottom-bar-admin.php. None of the three settings forms (main settings, sharing services, restore defaults) include a wp_nonce_field(), and the server-side processing code never calls check_admin_referer() or any equivalent nonce validation before processing POST data and calling update_option(). This makes it possible for unauthenticated attackers to trick a logged-in administrator into submitting a crafted request that updates plugin configuration options, such as changing the language, maximum post counts, or enabled sharing services."
},
{
"lang": "es",
"value": "El plugin Bottom Bar para WordPress es vulnerable a la falsificaci\u00f3n de petici\u00f3n en sitios cruzados en todas las versiones hasta la 0.1.7 inclusive. Esto se debe a la falta de verificaci\u00f3n de nonce en los formularios de actualizaci\u00f3n de configuraci\u00f3n del plugin gestionados en bottom-bar-admin.PHP. Ninguno de los tres formularios de configuraci\u00f3n (configuraci\u00f3n principal, servicios para compartir, restaurar valores predeterminados) incluye un wp_nonce_field(), y el c\u00f3digo de procesamiento del lado del servidor nunca llama a check_admin_referer() ni a ninguna validaci\u00f3n de nonce equivalente antes de procesar los datos POST y llamar a update_option(). Esto hace posible que atacantes no autenticados enga\u00f1en a un administrador con sesi\u00f3n iniciada para que env\u00ede una petici\u00f3n manipulada que actualiza las opciones de configuraci\u00f3n del plugin, como cambiar el idioma, el n\u00famero m\u00e1ximo de publicaciones o los servicios para compartir habilitados."
}
],
"id": "CVE-2026-6401",
"lastModified": "2026-07-24T08:10:00.150",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4,
"source": "security@wordfence.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-6401",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-20T14:15:40.602011Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-05-20T02:16:38.213",
"references": [
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/bottom-bar/tags/0.1.7/bottom-bar-admin.php#L16"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/bottom-bar/tags/0.1.7/bottom-bar-admin.php#L59"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/bottom-bar/trunk/bottom-bar-admin.php#L16"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/bottom-bar/trunk/bottom-bar-admin.php#L59"
},
{
"source": "security@wordfence.com",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/db0715ed-a06e-4a68-b9c3-408887cae113?source=cve"
}
],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-352"
}
],
"source": "security@wordfence.com",
"type": "Secondary"
}
]
}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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