CVE-2026-65886
CRITICALJoomla Extension - balbooa.com - Unauthenticated arbitrary file read in Gridbox < 2.20.2
Title source: cnaDescription
Joomla Extension - balbooa.com - Unauthenticated arbitrary file read in Gridbox < 2.20.2 - The photo viewer allows unauthenticated attackers to view arbitrary files.
References (2)
Core 2
Core References
Product product
https://www.balbooa.com/gridbox
Third Party Advisory third-party-advisory
https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/
Scores
CVSS v4
9.2
EPSS
0.0036
EPSS Percentile
28.7%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (1)
balbooa.com/Gridbox extension for Joomla
1.0.0-2.20.1
Published
Jul 29, 2026
Tracked Since
Jul 29, 2026