CVE-2026-65885 Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox < 2.20.2
Authenticated attackers can upload arbitrary files in the Gridbox Joomla extension, potentially leading to remote code execution when combined with another vulnerability.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-65885?
CVE-2026-65885 is a critical vulnerability in balbooa.com Gridbox extension for Joomla, published on 29 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-434
Which versions are affected by CVE-2026-65885?
It affects 1 product.
Products include Balbooa Gridbox.
How do I fix CVE-2026-65885?
No fix has been published for CVE-2026-65885 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-65885 being exploited?
There is no known exploitation of CVE-2026-65885 in the wild and no public exploit code.
Other vulnerabilities in balbooa.com Gridbox extension for Joomla
- CVE-2026-65884 Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2
- CVE-2026-65887 Joomla Extension - balbooa.com - Unauthenticated arbitrary password reset in Gridbox < 2.20.2
- CVE-2026-65888 Joomla Extension - balbooa.com - Account takeover vulnerability in Gridbox < 2.20.2
- CVE-2026-65886 Joomla Extension - balbooa.com - Unauthenticated arbitrary file read in Gridbox < 2.20.2
- CVE-2026-65889 Joomla Extension - balbooa.com - Unauthenticated recursive directory deletion in Gridbox < 2.20.2
Sources
Also known as GHSA-ch97-6m5m-2jh8.