CVE-2026-44403 EXPLOIT
7.2
HIGH · CVSS 3.1 · EPSS 2.3% (pctl 83)
Patch early
A public exploit exists.
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().
Scoring
| CVSS | 7.2 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.28% — more likely to be exploited than 83% of all CVEs |
| Weakness | CWE-94 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2026-05-12 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| wftpserver | wing ftp server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Wing FTP Server 8.1.3 - Authenticated Remote Code Execution | 2026-05-29 |
References
→ the Explorer · watch your stack · NVD