# CVE-2026-75949: Joomla Extension - cmsjunkie.com - Arbitrary file upload / deletion (path traversal) in J-BusinessDirectory < 6.2.3

> Attackers can upload or delete arbitrary files via path traversal in J-BusinessDirectory, potentially leading to code execution or data modification.

- **Severity:** Critical 10.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **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-qp23-qqw8-mhp6

## What is CVE-2026-75949?

CVE-2026-75949 is a critical 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 -  Arbitrary file upload / deletion (path traversal) in J-BusinessDirectory < 6.2.3 - Upload/remove accepted a client-controlled root (_path_type could point at the component site/admin trees), did not enforce path containment, and used a weak extension check. CSRF token was also missing on upload/remove.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2026-75949?


## How do I fix CVE-2026-75949?

No fix has been published for CVE-2026-75949 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-75949 being exploited?

There is no known exploitation of CVE-2026-75949 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-75949 and fix it if it is affected.

What it is: CVE-2026-75949 is a critical 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-2026-75949 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-2026-75949/ (Markdown: https://insights.sbomify.com/CVE-2026-75949/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-75949
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-75949
- OSV: https://osv.dev/vulnerability/CVE-2026-75949

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-75949/
Summaries are generated and may contain mistakes; the official description above is the record.