CVE-2026-66489 Joomla Extension - balbooa.com - Various unauthenticated file system disclosure in Gridbox < 2.20.2
Medium 5.3
Published
Updated
Check this codebase for CVE-2026-66489 and fix it if it is affected.
What it is: CVE-2026-66489 is a medium-severity vulnerability in balbooa.com Gridbox extension for Joomla, published on 29 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-66489 in the wild and no public exploit code.
Affected product: balbooa.com Gridbox extension for Joomla. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-66489/ (Markdown: https://insights.sbomify.com/CVE-2026-66489/index.md)
Unauthenticated attackers can access sensitive file system information in the Gridbox extension for Joomla.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-66489?
CVE-2026-66489 is a medium-severity vulnerability in balbooa.com Gridbox extension for Joomla, published on 29 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Joomla Extension - balbooa.com - Various unauthenticated file system disclosure in Gridbox < 2.20.2
Weakness: CWE-200
Which versions are affected by CVE-2026-66489?
It affects 1 product.
Products include Balbooa Gridbox.
How do I fix CVE-2026-66489?
No fix has been published for CVE-2026-66489 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-66489 being exploited?
There is no known exploitation of CVE-2026-66489 in the wild and no public exploit code.
Other vulnerabilities in balbooa.com Gridbox extension for Joomla
- CVE-2026-65884 Joomla Extension - balbooa.com - Privilege Escalation in Gridbox < 2.20.2
- CVE-2026-65887 Joomla Extension - balbooa.com - Unauthenticated arbitrary password reset in Gridbox < 2.20.2
- CVE-2026-65888 Joomla Extension - balbooa.com - Account takeover vulnerability in Gridbox < 2.20.2
- CVE-2026-65885 Joomla Extension - balbooa.com - Authenticated arbitrary file upload in Gridbox < 2.20.2
- CVE-2026-65886 Joomla Extension - balbooa.com - Unauthenticated arbitrary file read in Gridbox < 2.20.2
Sources
Also known as GHSA-rghf-6cq9-v3pv.