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.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
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
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.
Sources
Also known as GHSA-4xrv-jhgg-fch2.