CVE-2026-65885

EUVD-2026-50298
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 21.63%
Affected Products (NVD)
VendorProductVersion
balbooagridbox
𝑥
< 2.20.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/
https://www.balbooa.com/gridbox