# CVE-2023-7181: Muyun DedeBIZ Add Attachment unrestricted upload

> Attackers can upload malicious files to the DedeBIZ CMS, potentially leading to remote code execution.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Dec 2023
- **Updated:** 20 Nov 2024
- **Also known as:** GHSA-65gm-992v-m56v

## What is CVE-2023-7181?

CVE-2023-7181 is a medium-severity vulnerability in Muyun DedeBIZ, published on 30 Dec 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability was found in Muyun DedeBIZ up to 6.2.12 and classified as critical. Affected by this issue is some unknown functionality of the component Add Attachment Handler. The manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-249368. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

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

## Which versions are affected by CVE-2023-7181?

It affects 1 product.


Products: Dedebiz Dedebiz.

## How do I fix CVE-2023-7181?

No fix has been published for CVE-2023-7181 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-7181 being exploited?

There is no known exploitation of CVE-2023-7181 in the wild and no public exploit code.

## Other vulnerabilities in Muyun DedeBIZ

- [CVE-2024-52770](https://insights.sbomify.com/CVE-2024-52770/): File upload in n/a (critical 9.8)
- [CVE-2023-43234](https://insights.sbomify.com/CVE-2023-43234/): Code injection in n/a (critical 9.8)
- [CVE-2023-31546](https://insights.sbomify.com/CVE-2023-31546/): Cross-site scripting in n/a (critical 9.6)
- [CVE-2024-52771](https://insights.sbomify.com/CVE-2024-52771/): Path traversal in n/a (critical 9.1)
- [CVE-2024-52769](https://insights.sbomify.com/CVE-2024-52769/): File upload in n/a (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-7181 and fix it if it is affected.

What it is: CVE-2023-7181 is a medium-severity vulnerability in Muyun DedeBIZ, published on 30 Dec 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-7181 in the wild and no public exploit code.

Affected product: Muyun DedeBIZ. 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-2023-7181/ (Markdown: https://insights.sbomify.com/CVE-2023-7181/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-7181
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-7181
- OSV: https://osv.dev/vulnerability/CVE-2023-7181

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-7181/
Summaries are generated and may contain mistakes; the official description above is the record.