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.
CVE ID: CVE-2025-34046
CVSS Base Severity: CRITICAL
CVSS Base Score: 10.0
CVSS Vector: 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
Vendor: Shanghai Fanwei Network Technology
Product: E-Office
EPSS Score: 0.55% (probability of being exploited)
EPSS Percentile: 66.94% (scored less or equal to compared to others)
EPSS Date: 2025-07-09 (when was this score calculated)