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CVE-2017-20255

Estado: AnalizadaAlta (8.8)—

Joomla! Component JB Visa 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the visatype parameter. Attackers can send GET requests to index.php with the option=com_bookpro and view=popup parameters, injecting SQL commands in the visatype parameter to extract sensitive database information including credentials and table contents.

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.

SQL injection en aplicación web accesible sin autenticación (AV:N, PR:N, UI:N). Exfiltración de credenciales y datos de base de datos (VC:H); manipulación potencial de datos vía SQL.

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

Vulnerability ScanningRestrict File and Directory PermissionsPrivileged Account ManagementRemote Data StorageNetwork SegmentationLimit Access to Resource Over Network

Tecnologías afectadas (1)

Joombooking — JB Visa

CWE

Referencias

JSON original (NVD)

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          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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          "valueDensity": "NOT_DEFINED",
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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      "affectedData": [
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      "url": "https://extensions.joomla.org/extensions/extension/vertical-markets/booking-a-reservations/jb-visa/",
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      "tags": [
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    },
    {
      "url": "https://www.vulncheck.com/advisories/joomla-component-jb-visa-sql-injection-via-visatype",
      "tags": [
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      "source": "disclosure@vulncheck.com"
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          "value": "CWE-89"
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  ],
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    }
  ],
  "lastModified": "2026-08-19T15:50:09.403",
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}