# CVE-2023-2056: DedeCMS module_main.php GetSystemFile code injection

> Remote attackers can execute arbitrary code via the GetSystemFile function in DedeCMS, requiring specific permissions.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **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:** 14 Apr 2023
- **Updated:** 6 Feb 2025
- **Also known as:** GHSA-w6jq-fpcp-h5cr

## What is CVE-2023-2056?

CVE-2023-2056 is a medium-severity code injection vulnerability in Dedecms Dedecms, published on 14 Apr 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in DedeCMS up to 5.7.87 and classified as critical. This issue affects the function GetSystemFile of the file module_main.php. The manipulation leads to code injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-225941 was assigned to this vulnerability.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2023-2056?

It affects 1 product.


Products: Dedecms Dedecms.

## How do I fix CVE-2023-2056?

No fix has been published for CVE-2023-2056 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2056 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2056 exists.

## 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-2023-2056 and fix it if it is affected.

What it is: CVE-2023-2056 is a medium-severity code injection vulnerability in Dedecms Dedecms, published on 14 Apr 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2056 exists.

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-2023-2056/ (Markdown: https://insights.sbomify.com/CVE-2023-2056/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2056
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2056
- OSV: https://osv.dev/vulnerability/CVE-2023-2056

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2056/
Summaries are generated and may contain mistakes; the official description above is the record.