CVE-2020-8634: Wftpserver Wing FTP Server

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets insecure permissions on files modified within the HTTP file management interface, resulting in files being saved with world-readable and world-writable permissions. If a sensitive system file were edited this way, a low-privilege user may escalate privileges to root.

Affected products

Published 2020-03-07. Last modified 2026-06-17.