CVE-2026-102789 Joomla Extension - balbooa.com - Missing Authorization Check on Editor Controller Task in Gridbox < 2.20.4.2
Critical 9.3
Published
Updated
Check this codebase for CVE-2026-102789 and fix it if it is affected.
What it is: CVE-2026-102789 is a critical vulnerability in balbooa.com Gridbox extension for Joomla, published on 27 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-102789 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-2026-102789/ (Markdown: https://insights.sbomify.com/CVE-2026-102789/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-102789?
CVE-2026-102789 is a critical vulnerability in balbooa.com Gridbox extension for Joomla, published on 27 Oct 2026.
Official description
Joomla Extension - balbooa.com - Missing Authorization Check on Editor Controller Task in Gridbox < 2.20.4.2 - EditorController::getBlogPosts() reads the order parameter and invokes getBlogPosts() . Unlike other tasks in this controller, it omits the GridboxHelper::checkUserEditLevel() check.
Weakness: CWE-284
Which versions are affected by CVE-2026-102789?
How do I fix CVE-2026-102789?
No fix has been published for CVE-2026-102789 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-102789 being exploited?
There is no known exploitation of CVE-2026-102789 in the wild and no public exploit code.
Sources
Also known as GHSA-rhxp-7mw6-3gpp.