# CVE-2018-9993: Cross-site scripting in n/a

> Cross-site scripting vulnerability in YUNUCMS allows attackers to inject malicious scripts via the content title field on the news center page.

- **Severity:** Medium 4.8 (`CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Apr 2018
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-wr8p-964c-7vgx

## What is CVE-2018-9993?

CVE-2018-9993 is a medium-severity cross-site scripting vulnerability in n/a, published on 10 Apr 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

YUNUCMS 1.0.7 has XSS via the content title on an admin/content/addcontent/cid/## page (aka a news center page).

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

## Which versions are affected by CVE-2018-9993?

It affects 1 product.


Products: Yunucms Yunucms.

## How do I fix CVE-2018-9993?

No fix has been published for CVE-2018-9993 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-9993 being exploited?

There is no known exploitation of CVE-2018-9993 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-19180](https://insights.sbomify.com/CVE-2018-19180/): Code injection in n/a (critical 9.8)
- [CVE-2018-19181](https://insights.sbomify.com/CVE-2018-19181/): Path traversal in n/a (high 7.5)
- [CVE-2020-18445](https://insights.sbomify.com/CVE-2020-18445/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2019-5310](https://insights.sbomify.com/CVE-2019-5310/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2019-5311](https://insights.sbomify.com/CVE-2019-5311/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-9993 and fix it if it is affected.

What it is: CVE-2018-9993 is a medium-severity cross-site scripting vulnerability in n/a, published on 10 Apr 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-9993 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-2018-9993/ (Markdown: https://insights.sbomify.com/CVE-2018-9993/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-9993
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-9993
- OSV: https://osv.dev/vulnerability/CVE-2018-9993

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-9993/
Summaries are generated and may contain mistakes; the official description above is the record.