CVE-2026-65885

Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox < 2.20.2 - File upload methods allows authenticated attackers to upload arbitrary files. Turns into an authenticated RCE if combined with CVE-2026-65884 as the required account can be created by the attacker.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/	Third Party Advisory
https://www.balbooa.com/gridbox	Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:balbooa:gridbox:*:*:*:*:*:joomla\!:*:*

History

05 Aug 2026, 18:37

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8
First Time		Balbooa Balbooa gridbox
References	~~() https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/ -~~	() https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/ - Third Party Advisory
References	~~() https://www.balbooa.com/gridbox -~~	() https://www.balbooa.com/gridbox - Product
CPE		cpe:2.3:a:balbooa:gridbox::::::joomla\!::*

29 Jul 2026, 14:16

Type	Values Removed	Values Added
References		() https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/ -

29 Jul 2026, 13:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-29 13:19

Updated : 2026-08-05 18:37

NVD link : CVE-2026-65885

Mitre link : CVE-2026-65885

CVE.ORG link : CVE-2026-65885

JSON object : View

Products Affected

balbooa

gridbox

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

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