CVE-2026-65884

—

CVSS 4.0

10.0 critical

EPSS

<1%p21

Published

Jul 29, 2026 (Jul 29, 2026)

Modified

Aug 5, 2026

Description

Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2 - The registration method allows users provided usergroup IDs, allowing unauthenticated actors to register new accounts with administrative permissions.

Vendors: balbooa
Products: gridbox
Ecosystems: Joomla
Weakness: CWE-284
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/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:Y/R:X/V:X/RE:X/U:Red

NVD CVE.org GitHub PoCs EPSS (0.3%)

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