PT-2026-65808 · Balbooa.Com · Gridbox Extension For Joomla

Phil Taylor · CVE-2026-66490 · Published 2026-07-29 · Updated 2026-07-29

NVD

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-66490

Affected Products

Gridbox Extension For Joomla

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-66490 · Security Note
• https://balbooa.com/gridbox · Note
• https://mysites.guru/blog/gridbox-23-critical-vulnerabilities · Note