CVE-2026-105420
CVE-2026-105420 · Path Traversal in Wing WFTP Server leading to Remote Code Execution
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Wing FTP Server does not verify user's base folder. An attacker with admin privileges can add user directories via scripts, allowing the added directories to escape the base folder. This allows the attacker to write files on the system and can lead to remote code execution with process owner privileges.Critically, since the installation guide mentions running the command with `sudo`, the files are created as “root.” This issue was fixed in version 8.2.6.
CVSS 9.4 · Critical · EPSS 0.5% · Fix available
- Published
- Updated
Affected products and versions
wing ftp server
- Versions
- ≥ 0, < 8.2.6: Affected (semver)
Update to 8.2.6