CVE-2026-65886

CRITICAL

Joomla Extension - balbooa.com - Unauthenticated arbitrary file read in Gridbox < 2.20.2

Title source: cna
STIX 2.1

Description

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
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