CVE-2026-66490

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

CVSS 3.1

6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2026-07-29

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• balbooa:gridbox

References

• https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/
• https://www.balbooa.com/gridbox

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