CVE-2026-65885 Details
Description
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.
An authenticated arbitrary file upload vulnerability has been identified in the Joomla Gridbox extension, versions prior to 2.20.2. This vulnerability allows authenticated attackers to upload arbitrary files. When combined with another vulnerability (CVE-2026-65884), it could lead to authenticated remote code execution, as the attacker can create the required account.
Users are advised to update to Gridbox version 2.20.2 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 29, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/ | [email protected] | Third Party Advisory |
| https://www.balbooa.com/gridbox | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| balbooa gridbox | < 2.20.2 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 5, 2026 | Initial Analysis | [email protected] |
| Jul 30, 2026 | CVE Modified | CISA-ADP |
| Jul 29, 2026 | CVE Modified | [email protected] |
| Jul 29, 2026 | New CVE Received | [email protected] |
| Jul 29, 2026 | CVE Modified | CISA-ADP |