# CVE-2018-14334: File upload in n/a

> Attackers can upload and execute arbitrary PHP files in Joyplus CMS due to flawed extension validation, leading to remote code execution.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Jul 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-qhw3-v22j-58j7

## What is CVE-2018-14334?

CVE-2018-14334 is a critical vulnerability in n/a, published on 17 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

manager/editor/upload.php in joyplus-cms 1.6.0 allows arbitrary file upload because detection of a prohibited file extension simply sets the $errm value, and does not otherwise alter the flow of control. Consequently, one can upload and execute a .php file, a similar issue to CVE-2018-8766.

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

## Which versions are affected by CVE-2018-14334?

It affects 1 product.


Products: Joyplus-Cms Project Joyplus-Cms.

## How do I fix CVE-2018-14334?

No fix has been published for CVE-2018-14334 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-14334 being exploited?

There is no known exploitation of CVE-2018-14334 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-14389](https://insights.sbomify.com/CVE-2018-14389/): SQL injection in n/a (critical 9.8)
- [CVE-2018-12039](https://insights.sbomify.com/CVE-2018-12039/): SQL injection in n/a (critical 9.8)
- [CVE-2018-8766](https://insights.sbomify.com/CVE-2018-8766/): File upload in n/a (critical 9.8)
- [CVE-2018-8717](https://insights.sbomify.com/CVE-2018-8717/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2020-20636](https://insights.sbomify.com/CVE-2020-20636/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-14334 and fix it if it is affected.

What it is: CVE-2018-14334 is a critical vulnerability in n/a, published on 17 Jul 2018. 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-2018-14334 in the wild and no public exploit code.

Affected product: n/a. 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-2018-14334/ (Markdown: https://insights.sbomify.com/CVE-2018-14334/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-14334
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-14334
- OSV: https://osv.dev/vulnerability/CVE-2018-14334

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-14334/
Summaries are generated and may contain mistakes; the official description above is the record.