# CVE-2019-8933: File upload in n/a

> Attackers can upload and execute PHP files in DedeCMS by bypassing WAF restrictions during template management, leading to remote code execution.

- **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:** 19 Feb 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-q8pj-4gw6-2cfj

## What is CVE-2019-8933?

CVE-2019-8933 is a high-severity vulnerability in Dedecms Dedecms, published on 19 Feb 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

In DedeCMS 5.7SP2, attackers can upload a .php file to the uploads/ directory (without being blocked by the Web Application Firewall), and then execute this file, via this sequence of steps: visiting the management page, clicking on the template, clicking on Default Template Management, clicking on New Template, and modifying the filename from ../index.html to ../index.php.

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

## Which versions are affected by CVE-2019-8933?

It affects 1 product.


Products: Dedecms Dedecms.

## How do I fix CVE-2019-8933?

No fix has been published for CVE-2019-8933 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-8933 being exploited?

There is no known exploitation of CVE-2019-8933 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-2019-8933 and fix it if it is affected.

What it is: CVE-2019-8933 is a high-severity vulnerability in Dedecms Dedecms, published on 19 Feb 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-2019-8933 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-2019-8933/ (Markdown: https://insights.sbomify.com/CVE-2019-8933/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-8933
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-8933
- OSV: https://osv.dev/vulnerability/CVE-2019-8933

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-8933/
Summaries are generated and may contain mistakes; the official description above is the record.