CVE-2026-65885
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductBalbooa Gridbox
PublishedJul 29, 2026
First seenJul 29, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Update
- balbooa gridbox2.20.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| balbooa gridbox | v < 2.20.2 | 2.20.2 |
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