# CVE-2023-23607: Unrestricted file upload leads to Remote Code Execution in erohtar/Dasherr

> Unauthenticated attackers can upload arbitrary files to execute code on the server via an unrestricted file upload vulnerability in Dasherr.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jan 2023
- **Updated:** 10 Mar 2025
- **Also known as:** GHSA-6rgc-2x44-7phq

## What is CVE-2023-23607?

CVE-2023-23607 is a critical vulnerability in erohtar Dasherr, published on 20 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

erohtar/Dasherr is a dashboard for self-hosted services. In affected versions unrestricted file upload allows any unauthenticated user to execute arbitrary code on the server. The file /www/include/filesave.php allows for any file to uploaded to anywhere. If an attacker uploads a php file they can execute code on the server. This issue has been addressed in version 1.05.00. Users are advised to upgrade. There are no known workarounds for this issue.

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

## Which versions are affected by CVE-2023-23607?

It affects 1 product.


Products: Dasherr Project Dasherr.

## How do I fix CVE-2023-23607?

No fix has been published for CVE-2023-23607 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-23607 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-23607 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-23607 and fix it if it is affected.

What it is: CVE-2023-23607 is a critical vulnerability in erohtar Dasherr, published on 20 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-23607 exists.

Affected product: erohtar Dasherr. 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-2023-23607/ (Markdown: https://insights.sbomify.com/CVE-2023-23607/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23607
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23607
- OSV: https://osv.dev/vulnerability/CVE-2023-23607

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23607/
Summaries are generated and may contain mistakes; the official description above is the record.