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CVE-2020-36875

Estado: AplazadaCrítica (9.3)—

AccessAlly WordPress plugin versions prior to 3.3.2 contain an unauthenticated arbitrary PHP code execution vulnerability in the Login Widget. The plugin processes the login_error parameter as PHP code, allowing an attacker to supply and execute arbitrary PHP in the context of the WordPress web server process, resulting in remote code execution.

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.

Vector CVSS AV:N/PR:N/UI:N indica acceso remoto sin autenticación; CWE-94 (improper control of generation of code) y descripción explícita de 'arbitrary PHP code execution' via parámetro login_error sin validación.

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

Privileged Account ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (1)

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

Accessally — AccessallyAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2020-36875",
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-36875",
          "role": "CISA Coordinator",
          "options": [
            {
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            },
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            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-09T17:46:49.626540Z"
        }
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    "cvssMetricV40": [
      {
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        "source": "disclosure@vulncheck.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 9.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
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  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "ACCESSALLY, INC.",
          "product": "AccessAlly",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "3.3.2",
              "versionType": "semver"
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  "published": "2026-01-09T17:15:50.263",
  "references": [
    {
      "url": "https://accessally.com/software-release/accessally-3-3-2/",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://wpscan.com/vulnerability/c644de6d-098d-4889-b75d-53fd2b89ff4d/",
      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://www.vulncheck.com/advisories/accessally-unauthenticated-arbitrary-php-code-execution",
      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://wpscan.com/vulnerability/c644de6d-098d-4889-b75d-53fd2b89ff4d/",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
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  "vulnStatus": "Deferred",
  "weaknesses": [
    {
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      "source": "disclosure@vulncheck.com",
      "description": [
        {
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          "value": "CWE-94"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "AccessAlly WordPress plugin versions prior to 3.3.2 contain an unauthenticated arbitrary PHP code execution vulnerability in the Login Widget. The plugin processes the login_error parameter as PHP code, allowing an attacker to supply and execute arbitrary PHP in the context of the WordPress web server process, resulting in remote code execution."
    },
    {
      "lang": "es",
      "value": "Versiones del plugin de WordPress AccessAlly anteriores a la 3.3.2 contienen una vulnerabilidad de ejecución de código PHP arbitrario no autenticada en el widget de inicio de sesión. El plugin procesa el parámetro login_error como código PHP, permitiendo a un atacante suministrar y ejecutar PHP arbitrario en el contexto del proceso del servidor web de WordPress, lo que resulta en ejecución remota de código."
    }
  ],
  "lastModified": "2026-06-17T03:16:23.623",
  "sourceIdentifier": "disclosure@vulncheck.com"
}