SB20250704160 - Multiple vulnerabilities in Wing FTP Server

Description

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error (CVE-ID: CVE-2025-47812)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Green

The vulnerability allows a remote user to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote authenticated user can perform certain actions and execute arbitrary code with elevated privileges. 

2) Information disclosure (CVE-ID: CVE-2025-47813)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Clear

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to full path disclosure via an overlong UID cookie string. A remote user can send specially crafted input to the server and gain access to sensitive information. 

Remediation

Install update from vendor's website.

References

• https://www.wftpserver.com/serverhistory.htm
• https://github.com/MrTuxracer/advisories/blob/master/CVEs/CVE-2025-47813.txt
• https://www.rcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-47812/