SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-47813

Wing FTP Server Information Disclosure Vulnerability

KEVMEDIUM 4.3EPSS 63.0%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 30 March 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

loginok.html in Wing FTP Server before 7.4.4 discloses the full local installation path of the application when using a long value in the UID cookie.

CVSS 3.1
4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS
62.97% probability · 99th percentile
CISA KEV
Listed 16 March 2026 · due 30 March 2026
Weakness
CWE-209
Affected
wftpserver/wing ftp server
Source
cve@mitre.org

CISA notes

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://www.wftpserver.com/serverhistory.htm ; https://nvd.nist.gov/vuln/detail/CVE-2025-47813

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.