# CVE-2026-75951: Missing authorization in J-BusinessDirectory extension for Joomla

> Attackers can access or modify unauthorized data via insecure direct object references in the J-BusinessDirectory Joomla extension.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Aug 2026
- **Updated:** 21 Aug 2026
- **Also known as:** GHSA-5hvc-jq76-66vg

## What is CVE-2026-75951?

CVE-2026-75951 is a medium-severity missing authorization vulnerability in cmsjunkie.com J-BusinessDirectory extension for Joomla, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Joomla Extension - cmsjunkie.com - Insecure Direct Object Reference (multiple frontend/API actions) in J-BusinessDirectory < 6.2.3

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-75951?


## How do I fix CVE-2026-75951?

No fix has been published for CVE-2026-75951 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-75951 being exploited?

There is no known exploitation of CVE-2026-75951 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-75951 and fix it if it is affected.

What it is: CVE-2026-75951 is a medium-severity missing authorization vulnerability in cmsjunkie.com J-BusinessDirectory extension for Joomla, published on 19 Aug 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-2026-75951 in the wild and no public exploit code.

Affected product: cmsjunkie.com J-BusinessDirectory 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-2026-75951/ (Markdown: https://insights.sbomify.com/CVE-2026-75951/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-75951
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-75951
- OSV: https://osv.dev/vulnerability/CVE-2026-75951

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-75951/
Summaries are generated and may contain mistakes; the official description above is the record.