# CVE-2022-43470: Cross-site request forgery in +F FS040U, +F FS020W, +F FS030W, and +F FS040W

> An adjacent attacker can hijack administrator sessions to reboot devices or reset configurations via CSRF in Fuji Soft routers.

- **Severity:** High 7.3 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 5 Dec 2022
- **Updated:** 24 Apr 2025
- **Also known as:** GHSA-m554-rhfc-2hcg

## What is CVE-2022-43470?

CVE-2022-43470 is a high-severity vulnerability in FUJI SOFT INCORPORATED +F FS040U, +F FS020W, +F FS030W, and +F FS040W, published on 5 Dec 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Cross-site request forgery (CSRF) vulnerability in +F FS040U software versions v2.3.4 and earlier, +F FS020W software versions v4.0.0 and earlier, +F FS030W software versions v3.3.5 and earlier, and +F FS040W software versions v1.4.1 and earlier allows an adjacent attacker to hijack the authentication of an administrator and user's unintended operations such as to reboot the product and/or reset the configuration to the initial set-up may be performed.

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

## Which versions are affected by CVE-2022-43470?

It affects 4 products.


Products: Fsi Fs020w Firmware, Fsi Fs030w Firmware, Fsi Fs040u Firmware, Fsi Fs040w Firmware.

## How do I fix CVE-2022-43470?

No fix has been published for CVE-2022-43470 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-43470 being exploited?

There is no known exploitation of CVE-2022-43470 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-43470 and fix it if it is affected.

What it is: CVE-2022-43470 is a high-severity vulnerability in FUJI SOFT INCORPORATED +F FS040U, +F FS020W, +F FS030W, and +F FS040W, published on 5 Dec 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-43470 in the wild and no public exploit code.

Affected product: FUJI SOFT INCORPORATED +F FS040U, +F FS020W, +F FS030W, and +F FS040W. 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-2022-43470/ (Markdown: https://insights.sbomify.com/CVE-2022-43470/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-43470
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-43470
- OSV: https://osv.dev/vulnerability/CVE-2022-43470

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-43470/
Summaries are generated and may contain mistakes; the official description above is the record.