Unauthenticated Recursive Directory Deletion in Balbooa Gridbox by Joomla
CVE-2026-65889

9.2CRITICAL

Key Information:

Vendor

Balbooa.com

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

What is CVE-2026-65889?

The Balbooa Gridbox extension for Joomla has a vulnerability that allows unauthenticated users to execute recursive directory deletion through the 'generateNewApp' method. This flaw, present in versions prior to 2.20.2, exposes sensitive files and directories to removal, potentially compromising the integrity of the website and its data.

Affected Version(s)

Gridbox extension for Joomla 1.0.0-2.20.1

References

https://www.balbooa.com/gridbox
product
https://mysites.guru/blog/gridbox-23-critical-vulnerabili...
third-party-advisory

CVSS V4

Score:
9.2
Severity:
CRITICAL
Confidentiality:
None
Integrity:
None
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, mysites.guru
.