Vulnerability Description
Wing FTP Server before 8.1.3 contains an authenticated remote code execution vulnerability in the session serialization mechanism that allows authenticated administrators to inject arbitrary Lua code through the domain admin mydirectory field. Attackers can exploit unsafe serialization of session values into Lua source code without proper escaping of closing delimiters, causing the injected code to be executed when the poisoned session is loaded via loadfile().
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wftpserver | Wing Ftp Server | < 8.1.3 |
Related Weaknesses (CWE)
References
- https://www.vulncheck.com/advisories/wing-ftp-server-authenticated-remote-code-eThird Party Advisory
- https://www.wftpserver.com/serverhistory.htmRelease NotesProduct
FAQ
What is CVE-2026-44403?
CVE-2026-44403 is a vulnerability with a CVSS score of 7.2 (HIGH). Wing FTP Server before 8.1.3 contains an authenticated remote code execution vulnerability in the session serialization mechanism that allows authenticated administrators to inject arbitrary Lua code ...
How severe is CVE-2026-44403?
CVE-2026-44403 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44403?
Check the references section above for vendor advisories and patch information. Affected products include: Wftpserver Wing Ftp Server.