# CVE-2023-38308: Cross-site scripting in n/a

> Attackers can inject malicious JavaScript via crafted URLs in Webmin's HTTP Tunnel, executing code in victims' browsers.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 31 Jul 2023
- **Updated:** 22 Oct 2024
- **Also known as:** GHSA-mw86-9j6v-q4x7

## What is CVE-2023-38308?

CVE-2023-38308 is a medium-severity cross-site scripting vulnerability in Webmin Webmin, published on 31 Jul 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An issue was discovered in Webmin 2.021. A Cross-Site Scripting (XSS) vulnerability was discovered in the HTTP Tunnel functionality when handling third-party domain URLs. By providing a crafted URL from a third-party domain, an attacker can inject malicious code. leading to the execution of arbitrary JavaScript code within the context of the victim's browser.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2023-38308?

It affects 1 product.


Products: Webmin Webmin.

## How do I fix CVE-2023-38308?

No fix has been published for CVE-2023-38308 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-38308 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-38308 exists.

## Other vulnerabilities in Webmin Webmin

- [CVE-2019-15107](https://insights.sbomify.com/CVE-2019-15107/): Webmin Command Injection (critical 9.8, exploited in the wild)
- [CVE-2002-2201](https://insights.sbomify.com/CVE-2002-2201/): Command injection in n/a (critical 10.0)
- [CVE-2001-1196](https://insights.sbomify.com/CVE-2001-1196/): Path traversal in n/a (critical 10.0)
- [CVE-2024-12828](https://insights.sbomify.com/CVE-2024-12828/): Webmin CGI Command Injection Remote Code Execution Vulnerability (critical 9.9)
- [CVE-2022-36446](https://insights.sbomify.com/CVE-2022-36446/): Cross-site scripting in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-38308 and fix it if it is affected.

What it is: CVE-2023-38308 is a medium-severity cross-site scripting vulnerability in Webmin Webmin, published on 31 Jul 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-38308 exists.

Affected product: Webmin Webmin. 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-2023-38308/ (Markdown: https://insights.sbomify.com/CVE-2023-38308/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-38308
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-38308
- OSV: https://osv.dev/vulnerability/CVE-2023-38308

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-38308/
Summaries are generated and may contain mistakes; the official description above is the record.