cve-2026-65884

CRITICAL CVSS 10.0 nvd
Description

Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2 - The registration method allows users provided usergroup IDs, allowing unauthenticated actors to register new accounts with administrative permissions.

Timeline
Published
2026-07-29
Last Modified
2026-10-23
CVSS Details
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
Affected Products
  • balbooa gridbox
Weaknesses (CWE)
CWE-284
CVSS metrics
Version Base Severity Vector Exploitability Impact Source
4.0 10.0 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/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:Y/R:X/V:X/RE:X/U:Red security@joomla.org
3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 3.9 5.9 nvd@nist.gov
CPE configurations
OR
CPE Version range Vulnerable
cpe:2.3:a:balbooa:gridbox:*:*:*:*:*:joomla\!:*:* < 2.20.2 yes
NVD metadata
NVD status
Analyzed
Source identifier
security@joomla.org
References
Linked Vulnerabilities

No linked vulnerabilities found.

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  "datePublished": "2026-07-29T13:19:10.677",
  "dateUpdated": "2026-10-23T23:10:00.157",
  "description": "Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2 - The registration method allows users provided usergroup IDs, allowing unauthenticated actors to register new accounts with administrative permissions.",
  "id": "CVE-2026-65884",
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      },
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        "value": "Extensión de Joomla - balbooa.com - Escalada de privilegios en Gridbox anterior a 2.20.2 - El método de registro permite a los usuarios proporcionar IDs de grupos de usuarios, permitiendo a actores no autenticados registrar nuevas cuentas con permisos administrativos."
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    ],
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            "exploitMaturity": "ATTACKED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "NONE",
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            "subAvailabilityImpact": "HIGH",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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    "references": [
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        "tags": [
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        "url": "https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/"
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        "url": "https://www.balbooa.com/gridbox"
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  "severity": "CRITICAL",
  "source": "nvd",
  "title": "Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2 - The registration method allows users prov..."
}
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