CVE-2026-44403
Wing FTP Server < 8.1.3 Authenticated Remote Code Execution via Session Serialization
Vexday Risk Score
41Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 8.6EPSS 2.6%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
12 May 2026Published on NVD
14 May 2026Public PoC
Recommendation: Plan a near-term fix — a public PoC already exists.
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:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Wing FTP Server · Wing FTP Serverpublic PoCs found — 2
githubgithub.com/ZemarKhos/CVE-2026-44403-WingFTP-v8.1.2-POC-Exploit★ 1exploitdbwww.exploit-db.com/exploits/52589unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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