Authentication Bypass in Joomla Extension Gridbox by Balbooa
CVE-2026-61425

9.4CRITICAL

Key Information:

Vendor

Balbooa.com

Status
Gridbox Extension For Joomla
Vendor
CVE Published:
20 July 2026

What is CVE-2026-61425?

The Gridbox extension for Joomla, developed by Balbooa, is susceptible to an authentication bypass that may enable unauthorized users to gain full administrative access to the system. This vulnerability could potentially compromise the integrity and security of websites utilizing the extension, as it grants elevated privileges without proper authentication checks.

Affected Version(s)

Gridbox extension for Joomla 1.0.0-2.20.0.2

References

https://www.balbooa.com/gridbox
product
https://mysites.guru/blog/gridbox-critical-authentication...
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Phil Taylor
.