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CVE-2026-65884— Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2

CVSS 10.0 · Critical EPSS 0.25% · P16

Possible ATT&CK Techniques 1AI

T1136.001 · Local Account

Affected Version Matrix 1

VendorProductVersion RangeStatus
balbooa.comGridbox extension for Joomla1.0.0-2.20.1affected
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I. Basic Information for CVE-2026-65884

Vulnerability Information
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Vulnerability Title
Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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/AU:Y/U:Red
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Balbooa Gridbox extension for Joomla 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Balbooa Gridbox extension for Joomla是Balbooa公司的一款Joomla的Gridbox扩展插件。 Balbooa Gridbox extension for Joomla 2.20.2之前版本存在权限许可和访问控制问题漏洞，该漏洞源于注册方法允许用户提供用户组ID，可能导致未经身份验证的攻击者注册具有管理员权限的新账户，造成权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
balbooa.comGridbox extension for Joomla 1.0.0-2.20.1 -

II. Public POCs for CVE-2026-65884

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III. Intelligence Information for CVE-2026-65884

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Security Blog Posts for CVE-2026-65884 (1)

Vendor Pages for CVE-2026-65884 (1)

Same Patch Batch · balbooa.com · 2026-07-29 · 11 CVEs total

CVE-2026-6588810.0 CRITICALJoomla Extension - balbooa.com - Account takeover vulnerability in Gridbox < 2.20.2
CVE-2026-6588710.0 CRITICALJoomla Extension - balbooa.com - Unauthenticated arbitrary password reset in Gridbox < 2.
CVE-2026-658859.4 CRITICALJoomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox < 2.20.2
CVE-2026-658899.2 CRITICALJoomla Extension - balbooa.com - Unauthenticated recursive directory deletion in Gridbox <
CVE-2026-658909.2 CRITICALJoomla Extension - balbooa.com - Unauthenticated SQL injection in Gridbox < 2.20.2
CVE-2026-658869.2 CRITICALJoomla Extension - balbooa.com - Unauthenticated arbitrary file read in Gridbox < 2.20.2
CVE-2026-66489Joomla Extension - balbooa.com - Various unauthenticated file system disclosure in Gridbox
CVE-2026-66488Joomla Extension - balbooa.com - Payment bypass in Gridbox < 2.20.2
CVE-2026-66490Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridb
CVE-2026-65947Joomla Extension - balbooa.com - Various CSRF vectors in the admin interface in Gridbox <

IV. Related Vulnerabilities

Same product: Gridbox extension for Joomla
Same vendor: balbooa.com
Same weakness: CWE-284

V. Comments for CVE-2026-65884

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