What’s Vulnerable › Vulnerabilities

CVE-2025-27889

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-07-10 · updated 2026-06-17
• Weakness: CWE-15

Description

Wing FTP Server before 7.4.4 does not properly validate and sanitize the url parameter of the downloadpass.html endpoint, allowing injection of an arbitrary link. If a user clicks a crafted link, this discloses a cleartext password to the attacker.

Affected products

• Wing FTP Server: before 7.4.4 — fixed in 7.4.4

How to fix

Upgrade to a fixed version: Wing FTP Server 7.4.4. Check the vendor advisory for mitigations.

References

• https://github.com/MrTuxracer/advisories/blob/master/CVEs/CVE-2025-27889.txt
• https://www.rcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-47812/
• https://www.wftpserver.com/wftpserver.htm
• https://www.rcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-47812/

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