# CVE-2018-16555: Cross-site scripting in SCALANCE S602, SCALANCE S612, SCALANCE S623, SCALANCE S627-2M

> An attacker can execute arbitrary scripts in the web interface of Siemens SCALANCE switches if a logged-in user visits a malicious link.

- **Severity:** Medium 5.4 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **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:** 13 Dec 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-8j36-9mff-4j84

## What is CVE-2018-16555?

CVE-2018-16555 is a medium-severity cross-site scripting vulnerability in Siemens AG SCALANCE S602, SCALANCE S612, SCALANCE S623, SCALANCE S627-2M, published on 13 Dec 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

A vulnerability has been identified in SCALANCE S602 (All versions < V4.0.1.1), SCALANCE S612 (All versions < V4.0.1.1), SCALANCE S623 (All versions < V4.0.1.1), SCALANCE S627-2M (All versions < V4.0.1.1). The integrated web server could allow Cross-Site Scripting (XSS) attacks if unsuspecting users are tricked into accessing a malicious link. User interaction is required for a successful exploitation. The user must be logged into the web interface in order for the exploitation to succeed. At the stage of publishing this security advisory no public exploitation is known.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-80 (Improper Neutralization of Script-Related HTML Tags in a Web Page)

## Which versions are affected by CVE-2018-16555?

It affects 4 products.


Products: Siemens Scalance S602 Firmware, Siemens Scalance S612 Firmware, Siemens Scalance S623 Firmware, Siemens Scalance S627-2m Firmware.

## How do I fix CVE-2018-16555?

No fix has been published for CVE-2018-16555 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-16555 being exploited?

There is no known exploitation of CVE-2018-16555 in the wild and no public exploit code.

## Other vulnerabilities in Siemens AG SCALANCE S602, SCALANCE S612, SCALANCE S623, SCALANCE S627-2M

- [CVE-2019-13925](https://insights.sbomify.com/CVE-2019-13925/): Denial of service in SCALANCE S602 (high 7.5)
- [CVE-2019-13926](https://insights.sbomify.com/CVE-2019-13926/): Denial of service in SCALANCE S602 (high 7.5)
- [CVE-2019-6585](https://insights.sbomify.com/CVE-2019-6585/): Cross-site scripting in SCALANCE S602 (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-16555 and fix it if it is affected.

What it is: CVE-2018-16555 is a medium-severity cross-site scripting vulnerability in Siemens AG SCALANCE S602, SCALANCE S612, SCALANCE S623, SCALANCE S627-2M, published on 13 Dec 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-2018-16555 in the wild and no public exploit code.

Affected product: Siemens AG SCALANCE S602, SCALANCE S612, SCALANCE S623, SCALANCE S627-2M. 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-2018-16555/ (Markdown: https://insights.sbomify.com/CVE-2018-16555/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-16555
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-16555
- OSV: https://osv.dev/vulnerability/CVE-2018-16555

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-16555/
Summaries are generated and may contain mistakes; the official description above is the record.