Vulnerability Description
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.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-105420?
CVE-2026-105420 is a documented vulnerability. 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 at...
How severe is CVE-2026-105420?
CVSS scoring is not yet available for CVE-2026-105420. Check NVD for updates.
Is there a patch for CVE-2026-105420?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.