# CVE-2019-6289: File upload in n/a

> Remote attackers can execute arbitrary PHP code by uploading a file with a safe extension and renaming it to a mixed-case PHP extension.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jan 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-3hg4-f93v-22hp

## What is CVE-2019-6289?

CVE-2019-6289 is a high-severity vulnerability in Dedecms Dedecms, published on 15 Jan 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

uploads/include/dialog/select_soft.php in DedeCMS V57_UTF8_SP2 allows remote attackers to execute arbitrary PHP code by uploading with a safe file extension and then renaming with a mixed-case variation of the .php extension, as demonstrated by the 1.pHP filename.

Weakness: CWE-706 (Use of Incorrectly-Resolved Name or Reference), CWE-178 (Improper Handling of Case Sensitivity)

## Which versions are affected by CVE-2019-6289?

It affects 1 product.


Products: Dedecms Dedecms.

## How do I fix CVE-2019-6289?

No fix has been published for CVE-2019-6289 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-6289 being exploited?

There is no known exploitation of CVE-2019-6289 in the wild and no public exploit code.

## Other vulnerabilities in Dedecms Dedecms

- [CVE-2026-30643](https://insights.sbomify.com/CVE-2026-30643/): Code injection in n/a (critical 9.8)
- [CVE-2026-30694](https://insights.sbomify.com/CVE-2026-30694/): Code injection in n/a (critical 9.8)
- [CVE-2024-35510](https://insights.sbomify.com/CVE-2024-35510/): File upload in n/a (critical 9.8)
- [CVE-2024-35375](https://insights.sbomify.com/CVE-2024-35375/): File upload in n/a (critical 9.8)
- [CVE-2024-29661](https://insights.sbomify.com/CVE-2024-29661/): File upload in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-6289 and fix it if it is affected.

What it is: CVE-2019-6289 is a high-severity vulnerability in Dedecms Dedecms, published on 15 Jan 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-6289 in the wild and no public exploit code.

Affected product: Dedecms Dedecms. 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-2019-6289/ (Markdown: https://insights.sbomify.com/CVE-2019-6289/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-6289
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-6289
- OSV: https://osv.dev/vulnerability/CVE-2019-6289

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-6289/
Summaries are generated and may contain mistakes; the official description above is the record.