PatchTheCVECVE-2026-66488: Joomla Extension - balbooa.com - Payment bypass in Gridbox < 2.20.2
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Routine
MEDIUM 5.3REMOTEUPGRADE
CVE-2026-66488 is a medium-severity flaw (CVSS 5.3) affecting gridbox. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Joomla Extension - balbooa.com - Payment bypass in Gridbox < 2.20.2
Why this priority
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 73%) |
| CISA exploited list | No |
| Weakness | CWE-285 |
| Published | 2026-07-29 |
| Last modified | 2026-10-23 |
Publisher (CNA): Joomla! Project · Vendor: balbooa
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
balbooa gridbox UPGRADE
Affected: < 2.20.2
Fixed in: 2.20.2
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy gridbox || rpm -q gridbox || gridbox --version
2. UPGRADE to 2.20.2 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade gridbox
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade gridbox
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
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