# CVE-2025-34046: Fanwei E-Office Unauthenticated File Upload

> Unauthenticated attackers can upload arbitrary files to the Fanwei E-Office web interface, leading to remote code execution and system compromise.

- **Severity:** Critical 10.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Jun 2025
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-4xrv-jhgg-fch2

## What is CVE-2025-34046?

CVE-2025-34046 is a critical vulnerability in Shanghai Fanwei Network Technology E-Office, published on 26 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An unauthenticated file upload vulnerability exists in the Fanwei E-Office <= v9.4 web management interface. The vulnerability affects the /general/index/UploadFile.php endpoint, which improperly validates uploaded files when invoked with certain parameters (uploadType=eoffice_logo or uploadType=theme). An attacker can exploit this flaw by sending a crafted HTTP POST request to upload arbitrary files without requiring authentication. Successful exploitation could enable remote code execution on the affected server, leading to complete compromise of the web application and potentially the underlying system. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2025-34046?


## How do I fix CVE-2025-34046?

No fix has been published for CVE-2025-34046 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34046 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34046 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34046 and fix it if it is affected.

What it is: CVE-2025-34046 is a critical vulnerability in Shanghai Fanwei Network Technology E-Office, published on 26 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34046 exists.

Affected product: Shanghai Fanwei Network Technology E-Office. 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-2025-34046/ (Markdown: https://insights.sbomify.com/CVE-2025-34046/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34046
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34046
- OSV: https://osv.dev/vulnerability/CVE-2025-34046

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34046/
Summaries are generated and may contain mistakes; the official description above is the record.