CVE-2026-85658
The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 4.17.2 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Puntuación base: 8.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.65%
- Percentil entre todas las CVEs puntuadas: 50
- Fecha de la puntuación: 5/10/2026
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
T1210Exploitation of Remote Serviceslateral movement45 % - Impacto principal
T1059Command and Scripting Interpreterexecution85 %
Usuarios autenticados (PR:L) explotan validación deficiente en procesamiento de shortcodes en plugin WordPress, permitiendo ejecución de comandos arbitrarios. CWE-94 (Code Injection) confirma inyección de código ejecutable.
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-94
Referencias
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.2/src/Classes/EditUserProfile.php#L337
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.2/src/Functions/GlobalFunctions.php#L1715
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.2/src/ShortcodeParser/Builder/FrontendProfileBuilder.php#L339
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.2/src/ShortcodeParser/FrontendProfileTag.php#L133
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.2/src/Themes/DragDrop/ProfileFieldListing.php#L146
- https://plugins.trac.wordpress.org/changeset/3682604/wp-user-avatar/trunk/src/ShortcodeParser/Builder/FrontendProfileBuilder.php
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3682619%40wp-user-avatar%2Ftags%2F4.17.3&old=3666803%40wp-user-avatar%2Ftags%2F4.17.2
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b8486d1d-8a76-446e-867b-8db32499ebf8?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-85658",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-85658",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-09-19T13:26:03.166997Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.1,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.2,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "properfraction",
"product": "Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
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}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-09-19T08:16:54.770",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.2/src/Classes/EditUserProfile.php#L337",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.2/src/Functions/GlobalFunctions.php#L1715",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.2/src/ShortcodeParser/Builder/FrontendProfileBuilder.php#L339",
"source": "security@wordfence.com"
},
{
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"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.2/src/Themes/DragDrop/ProfileFieldListing.php#L146",
"source": "security@wordfence.com"
},
{
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"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=&new=3682619%40wp-user-avatar%2Ftags%2F4.17.3&old=3666803%40wp-user-avatar%2Ftags%2F4.17.2",
"source": "security@wordfence.com"
},
{
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"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-94"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 4.17.2 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes."
}
],
"lastModified": "2026-09-21T13:33:33.387",
"sourceIdentifier": "security@wordfence.com"
}