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CVE-2026-23697

Estado: AplazadaAlta (8.7)—

Vtiger CRM before 8.4.0 contains an authenticated file upload vulnerability that allows low-privileged users to achieve remote code execution by uploading a .phar file containing arbitrary PHP code through the Documents module, bypassing the extension denylist in config.inc.php which omits the .phar extension. The uploaded file is stored with its original .phar extension under the web-accessible storage directory, and a misconfigured .htaccess using Apache 2.2 syntax is silently ignored on Apache 2.4 deployments, allowing unauthenticated HTTP requests to directly execute the uploaded PHP payload.

CVSS

Probabilidad de explotación (EPSS)

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.

Acceso autenticado (PR:L) a servicio remoto con ejecución de código PHP en el servidor; web shell mediante carga de fichero .phar en directorio web accesible.

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

Disable or Remove Feature or ProgramPrivileged Account ManagementVulnerability ScanningUser Account ManagementThreat Intelligence ProgramRestrict Web-Based Content

Tecnologías afectadas (2)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Apache — Http ServerAIVtiger — CRMAI

CWE

Referencias

JSON original (NVD)

Mostrar
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          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-07-07T17:31:42.988594Z"
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          "vendor": "Vtiger",
          "product": "Vtiger CRM",
          "versions": [
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              "version": "0",
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              "lessThanOrEqual": "8.3.0"
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  "published": "2026-07-07T17:16:35.977",
  "references": [
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      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://www.vtiger.com/",
      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://www.vulncheck.com/advisories/vtiger-crm-authenticated-file-upload-rce-via-documents-module",
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      "value": "Vtiger CRM before 8.4.0 contains an authenticated file upload vulnerability that allows low-privileged users to achieve remote code execution by uploading a .phar file containing arbitrary PHP code through the Documents module, bypassing the extension denylist in config.inc.php which omits the .phar extension. The uploaded file is stored with its original .phar extension under the web-accessible storage directory, and a misconfigured .htaccess using Apache 2.2 syntax is silently ignored on Apache 2.4 deployments, allowing unauthenticated HTTP requests to directly execute the uploaded PHP payload."
    }
  ],
  "lastModified": "2026-07-08T15:28:15.630",
  "sourceIdentifier": "disclosure@vulncheck.com"
}