# CVE-2026-81566: Missing authorization in SP Page Builder (Free and Pro) extension for Joomla

> Attackers with minimal permissions can create or overwrite menu items, potentially altering site navigation and home page settings.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Sep 2026
- **Updated:** 15 Sep 2026
- **Also known as:** GHSA-qjwv-v399-h43g

## What is CVE-2026-81566?

CVE-2026-81566 is a medium-severity missing authorization vulnerability in joomshaper.com SP Page Builder (Free and Pro) extension for Joomla, published on 14 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Joomla Extension - joomshaper.com - Missing Access Control in Menu Item Creation in SP Page Builder (Free and Pro) 4.0.0 - 6.9.0 - The add-to-menu routine invoked the com_menus item model's save() method directly. That model does not perform authorisation itself, because the relevant checks reside in the com_menus controller, and the only check applied was core.edit on com_sppagebuilder. Users with no permissions whatsoever on com_menus could therefore create menu items, and because the record identifier was taken from the submitted jform[menuid] field, could also overwrite existing ones. The home flag was read back from the database and preserved, so the site's home menu item could be repointed while remaining the home item.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-81566?


## How do I fix CVE-2026-81566?

No fix has been published for CVE-2026-81566 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-81566 being exploited?

There is no known exploitation of CVE-2026-81566 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-81566 and fix it if it is affected.

What it is: CVE-2026-81566 is a medium-severity missing authorization vulnerability in joomshaper.com SP Page Builder (Free and Pro) extension for Joomla, published on 14 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-81566 in the wild and no public exploit code.

Affected product: joomshaper.com SP Page Builder (Free and Pro) 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-2026-81566/ (Markdown: https://insights.sbomify.com/CVE-2026-81566/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-81566
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81566
- OSV: https://osv.dev/vulnerability/CVE-2026-81566

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-81566/
Summaries are generated and may contain mistakes; the official description above is the record.