CRITICAL 9.4 NVD

CVE-2026-65885

Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox < 2.20.2 - File upload methods allows authenticated attackers to upload arbitrar

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.

References

Published: 2026-07-29 · Source: NVD · Feed updated: 2026-08-04

This critical severity vulnerability with a CVSS score of 9.4 was published on 2026-07-29 via NVD.

Risk Timeline

CVE Disclosed2026-07-29 · 5 days ago

Remediation Resources

Official Advisory

mysites.guru/blog/gridbox-23-critical-vulnerabilities/

Analysis & PoC

www.balbooa.com/gridbox

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