What is CVE-2026-66488?

CVE-2026-66488 is a medium-severity vulnerability in Balbooa Gridbox, classified under Improper Authorization. CVSS score: 5.3/10. Published 2026-07-29.

How severe is CVE-2026-66488?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Balbooa Gridbox

CVE-2026-66488

Joomla Extension - balbooa.com - Payment bypass in Gridbox < 2.20.2

EPSS: 0.002 (10.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Balbooa Gridbox
Balbooa.com Gridbox Extension For Joomla — versions 1.0.0-2.20.1

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

security@joomla.org (Product, product)
security@joomla.org (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-66488?: CVE-2026-66488 is a medium-severity vulnerability in Balbooa Gridbox, classified under Improper Authorization. CVSS score: 5.3/10. Published 2026-07-29.
How severe is CVE-2026-66488?: Medium severity. CVSS v3 base score is 5.3 out of 10.