CVE-2025-47813
Wing FTP Server Information Disclosure Vulnerability
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
References
- https://github.com/MrTuxracer/advisories/blob/master/CVEs/CVE-2025-47813.txtExploit, Third Party Advisory
- https://www.rcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-47812/Exploit, Third Party Advisory
- https://www.wftpserver.comProduct
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47813US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.