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 UI
Affects Wing FTP Server 7.4.3 and earlier when a UID cookie longer than the operating system's maximum path size is sent to /loginok.html. Fixed in 7.4.4.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in 7.4.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Wing FTP Server, a file transfer server product, is affected by this vulnerability. An attacker can send a request with a long value in the UID cookie to reveal the full local installation path of the application.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- Record last updated
- CISA remediation deadline
Due date for US federal agencies to patch
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- wftpserver Wing FTP Server
fixed in 7.4.4
References 3
wftpserver.com
rcesecurity.com
GitHub · MrTuxracer/advisories
Questions about CVE-2025-47813
What does this mean?
A UID cookie value longer than the operating system's maximum path size, sent to loginok.html, triggers an error message that reveals the full local installation path of the application.Source: github.com
Am I affected, and how do I check?
Wing FTP Server versions up to and including 7.4.3 are in the affected range. The trigger is a long UID cookie value sent to /loginok.html, so the installed version number is the thing to check.Source: github.com
What should I do about it?
Update to Wing FTP Server 7.4.4, which is the version the advisory names as the fix.Source: github.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-03-16, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data