CVE-2026-105607: Joomla Extension - balbooa.com - Unauthenticated stored XSS in the "Recent Comments / Recent Reviews" widget i

Routine

HIGH 8.6DOWNGRADE

CVE-2026-105607 is a high-severity flaw (CVSS 8.6) affecting gridbox extension for joomla. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Joomla Extension - balbooa.com - Unauthenticated stored XSS in the "Recent Comments / Recent Reviews" widget in Gridbox < 2.20.5.0

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.6 (High)
EPSS exploit chance	n/a
CISA exploited list	No
Weakness	CWE-79
Published	2026-11-05
Last modified	2026-11-05

Publisher (CNA): Joomla · Vendor: balbooa.com · Source: CVE Program record (NVD analysis pending)

Last updated 2026-11-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-11-05 17:51 UTCPublished CVE record published
2026-11-05 17:51 UTCUpdated Record last modified

balbooa.com gridbox extension for joomla DOWNGRADE

Affected: 1.0.0-2.20.4.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0-2.20.4.2

1. Check installed version

apt-cache policy gridbox-extension-for-joomla || rpm -q gridbox-extension-for-joomla || gridbox-extension-for-joomla --version

2. No fixed release: DOWNGRADE to a release before 1.0.0-2.20.4.2 (Debian / Ubuntu)

apt-cache madison gridbox-extension-for-joomla sudo apt install gridbox-extension-for-joomla=<VERSION_BEFORE_1.0.0-2.20.4.2> sudo apt-mark hold gridbox-extension-for-joomla

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list gridbox-extension-for-joomla sudo dnf downgrade gridbox-extension-for-joomla-<VERSION_BEFORE_1.0.0-2.20.4.2> sudo dnf versionlock add gridbox-extension-for-joomla

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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.

Quick answers

How do I fix CVE-2026-105607?

gridbox extension for joomla: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-105607 being exploited?

CVE-2026-105607 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-105607 affect?

CVE-2026-105607 affects gridbox extension for joomla. Severity is high (CVSS 8.6). Joomla Extension - balbooa.com - Unauthenticated stored XSS in the "Recent Comments / Recent Reviews" widget in Gridbox < 2.20.5.0

How urgent is CVE-2026-105607?

Priority 30/100. High severity

Software pages

Joomla vulnerabilities

Related CVEs

CVE-2026-107129 HIGH 8.3 DOWNGRADE Joomla Extension - balbooa.com - Unauthenticated arbitrary file deletion via path traversal in Gridbox < 2.20.
CVE-2026-107130 MEDIUM 6.9 DOWNGRADE Joomla Extension - balbooa.com - Unauthenticated deletion of submission/field files in Gridbox < 2.20.5.0
CVE-2026-107903 HIGH 8.6 DOWNGRADE Joomla Extension - balbooa.com - Stored XSS in reviews via inconsistent sanitization in Gridbox < 2.20.5.0

References

← Back to latest CVEs