# CVE-2021-37198: Cross-site request forgery in COMOS V10.2

> An attacker can perform cross-site request forgery attacks against Siemens COMOS web components, requiring the web components to be enabled.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Jan 2022
- **Updated:** 22 May 2025
- **Also known as:** GHSA-4348-cfw6-3v28

## What is CVE-2021-37198?

CVE-2021-37198 is a high-severity vulnerability in Siemens COMOS V10.2, published on 11 Jan 2022. 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

A vulnerability has been identified in COMOS V10.2 (All versions only if web components are used), COMOS V10.3 (All versions < V10.3.3.3 only if web components are used), COMOS V10.4 (All versions < V10.4.1 only if web components are used). The COMOS Web component of COMOS uses a flawed implementation of CSRF prevention. An attacker could exploit this vulnerability to perform cross-site request forgery attacks.

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

## Which versions are affected by CVE-2021-37198?

It affects 1 product.


Products: Siemens Comos.

## How do I fix CVE-2021-37198?

No fix has been published for CVE-2021-37198 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37198 being exploited?

There is no known exploitation of CVE-2021-37198 in the wild and no public exploit code.

## Other vulnerabilities in Siemens COMOS V10.2

- [CVE-2023-24482](https://insights.sbomify.com/CVE-2023-24482/): Memory corruption in COMOS V10.2 (critical 10.0)
- [CVE-2023-43504](https://insights.sbomify.com/CVE-2023-43504/): Memory corruption in COMOS (critical 9.6)
- [CVE-2023-43505](https://insights.sbomify.com/CVE-2023-43505/): Missing authorization in COMOS (critical 9.6)
- [CVE-2023-46601](https://insights.sbomify.com/CVE-2023-46601/): Missing authorization in COMOS (critical 9.6)
- [CVE-2021-37197](https://insights.sbomify.com/CVE-2021-37197/): SQL injection in COMOS V10.2 (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37198 and fix it if it is affected.

What it is: CVE-2021-37198 is a high-severity vulnerability in Siemens COMOS V10.2, published on 11 Jan 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-37198 in the wild and no public exploit code.

Affected product: Siemens COMOS V10.2. 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-2021-37198/ (Markdown: https://insights.sbomify.com/CVE-2021-37198/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37198
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37198
- OSV: https://osv.dev/vulnerability/CVE-2021-37198

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37198/
Summaries are generated and may contain mistakes; the official description above is the record.