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High · 7.2 Public exploit CVE-2026-44403 EUVD-2026-29848GHSA-ffh5-r5xj-cgmg

Wing FTP Server < 8.1.3 Authenticated Remote Code Execution via Session Serialization

Published May 12, 2026 · Updated Jul 14, 2026 · Assigned by VulnCheck

Vendor: Wing FTP Server Product: Wing FTP Server

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().

Affected products

VendorProductAffectedFixed
Wing FTP Server Wing FTP Server 8.1.2 8.1.3

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Exploit-DB 1

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References