# CVE-2023-6902: codelyfe Stupid Simple CMS upload.php unrestricted upload

> Attackers can upload malicious files via the upload.php endpoint in Stupid Simple CMS, potentially leading to remote code execution.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:A/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Dec 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-cj4r-q3q9-9m76

## What is CVE-2023-6902?

CVE-2023-6902 is a medium-severity vulnerability in codelyfe Stupid Simple CMS, published on 17 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability has been found in codelyfe Stupid Simple CMS up to 1.2.4 and classified as critical. This vulnerability affects unknown code of the file /file-manager/upload.php. The manipulation of the argument file leads to unrestricted upload. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-248260.

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

## Which versions are affected by CVE-2023-6902?

It affects 1 product.


Products: Codelyfe Stupid Simple Cms.

## How do I fix CVE-2023-6902?

No fix has been published for CVE-2023-6902 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6902 being exploited?

There is no known exploitation of CVE-2023-6902 in the wild and no public exploit code.

## Other vulnerabilities in codelyfe Stupid Simple CMS

- [CVE-2024-27689](https://insights.sbomify.com/CVE-2024-27689/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2024-22715](https://insights.sbomify.com/CVE-2024-22715/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2023-6901](https://insights.sbomify.com/CVE-2023-6901/): codelyfe Stupid Simple CMS HTTP POST Request handle-command.php os command injection (high 7.3)
- [CVE-2024-27559](https://insights.sbomify.com/CVE-2024-27559/): Cross-site request forgery in n/a (medium 6.3)
- [CVE-2024-27558](https://insights.sbomify.com/CVE-2024-27558/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6902 and fix it if it is affected.

What it is: CVE-2023-6902 is a medium-severity vulnerability in codelyfe Stupid Simple CMS, published on 17 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-6902 in the wild and no public exploit code.

Affected product: codelyfe Stupid Simple CMS. 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-2023-6902/ (Markdown: https://insights.sbomify.com/CVE-2023-6902/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6902
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6902
- OSV: https://osv.dev/vulnerability/CVE-2023-6902

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6902/
Summaries are generated and may contain mistakes; the official description above is the record.