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CVE-2026-48939

Estado: AnalizadaCrítica (10)⚠ Explotación activa

A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and 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).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad de carga de archivos arbitrarios (CWE-434) en aplicación web expuesta (AV:N, sin autenticación), permite subir PHP y ejecutar código. Impacto: web shell y ejecución remota.

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 ProgramVulnerability ScanningUser Account ManagementRestrict Web-Based ContentPrivileged Account ManagementNetwork Segmentation

Tecnologías afectadas (1)

Joomlic — Icagenda

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-48939",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-48939",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "active"
            },
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          ],
          "version": "2.0.3",
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        }
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          "integrityImpact": "HIGH",
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    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
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        "cvssData": {
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          "Automatable": "YES",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
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          "subIntegrityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
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          "subConfidentialityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
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          "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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  },
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      "affectedData": [
        {
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  "published": "2026-06-20T13:16:42.433",
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      "tags": [
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      "source": "security@joomla.org"
    },
    {
      "url": "https://github.com/Polosss/By-Poloss..-..CVE-2026-48939",
      "tags": [
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    },
    {
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      "tags": [
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      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48939",
      "tags": [
        "US Government Resource"
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    },
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    },
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      ],
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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  "descriptions": [
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      "lang": "en",
      "value": "A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution."
    }
  ],
  "lastModified": "2026-07-11T05:16:34.140",
  "cisaActionDue": "2026-07-13",
  "cisaExploitAdd": "2026-07-10",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "3.9.15",
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            },
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  "sourceIdentifier": "security@joomla.org",
  "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
  "cisaVulnerabilityName": "iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability"
}