# CVE-2026-67283: Joomla Extension - tabaoca.org - Improper ACL implementation allows allow file operations in Cotton Cloud < 2.0.2

> Unauthenticated attackers can read, delete, or modify files in the Cotton Cloud Joomla extension due to improper access control.

- **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:** 12 Aug 2026
- **Updated:** 12 Aug 2026
- **Also known as:** GHSA-x9hv-www7-w846

## What is CVE-2026-67283?

CVE-2026-67283 is a medium-severity missing authorization vulnerability in tabaoca.org Cotton Cloud extension for Joomla, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Joomla Extension - tabaoca.org - Improper ACL implementation allows file operations in Cotton Cloud < 2.0.2 - Unauthenticated users could perform various file-related operations (read, delete, overwrite, re-assign permissions) on every file managed within the extension.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-67283?


## How do I fix CVE-2026-67283?

No fix has been published for CVE-2026-67283 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-67283 being exploited?

There is no known exploitation of CVE-2026-67283 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-67283 and fix it if it is affected.

What it is: CVE-2026-67283 is a medium-severity missing authorization vulnerability in tabaoca.org Cotton Cloud extension for Joomla, published on 12 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-2026-67283 in the wild and no public exploit code.

Affected product: tabaoca.org Cotton Cloud 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-2026-67283/ (Markdown: https://insights.sbomify.com/CVE-2026-67283/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-67283
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-67283
- OSV: https://osv.dev/vulnerability/CVE-2026-67283

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-67283/
Summaries are generated and may contain mistakes; the official description above is the record.