CVE-2026-65885

UNKNOWN 0.0

Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox < 2.20.2

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox < 2.20.2 - File upload methods allows authenticated attackers to upload arbitrary files. Turns into an authenticated RCE if combined with CVE-2026-65884 as the required account can be created by the attacker.

CWE	CWE-434
Vendor	balbooa.com
Product	gridbox extension for joomla
Published	Jul 29, 2026
Last Updated	Jul 29, 2026

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Affected Versions

balbooa.com / Gridbox extension for Joomla

1.0.0-2.20.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Phil Taylor Pascal Lohmann