# CVE-2018-16951: Command injection in n/a

> Attackers can execute arbitrary commands on Xunfeng servers via CSRF due to improper handling of backquote characters in masscan.py.

- **Severity:** High 8.0 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 12 Sep 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-hrmw-rjxq-h3wh

## What is CVE-2018-16951?

CVE-2018-16951 is a high-severity command injection vulnerability in n/a, published on 12 Sep 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

xunfeng 0.2.0 allows command execution via CSRF because masscan.py mishandles backquote characters, a related issue to CVE-2018-16832.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2018-16951?

It affects 1 product.


Products: Xunfeng Project Xunfeng.

## How do I fix CVE-2018-16951?

No fix has been published for CVE-2018-16951 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-16951 being exploited?

There is no known exploitation of CVE-2018-16951 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-16832](https://insights.sbomify.com/CVE-2018-16832/): Cross-site request forgery in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-16951 and fix it if it is affected.

What it is: CVE-2018-16951 is a high-severity command injection vulnerability in n/a, published on 12 Sep 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-16951 in the wild and no public exploit code.

Affected product: n/a. 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-2018-16951/ (Markdown: https://insights.sbomify.com/CVE-2018-16951/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-16951
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-16951
- OSV: https://osv.dev/vulnerability/CVE-2018-16951

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-16951/
Summaries are generated and may contain mistakes; the official description above is the record.