Wing FTP Server does not verify user's base folder.
Wing FTP Server does not verify user's base folder. An attacker with admin privileges can add user directories via scripts, allowing the added directories to escape the base folder. This allows the attacker to write files on the system and can lead to remote code execution with process owner privileges.Critically, since the installation guide mentions running the command with `sudo`, the files are created as “root.” This issue was fixed in version 8.2.6.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Wing Soft Technology
- Product
- Wing FTP Server
- CVSS v4.0
- 9.4 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- EPSS
- 0.005 (p44)
- Fix
- available
- Weakness
- CWE-22
- Exposure class
- Operating system, File transfer
- NVD status
- Received
Why it ranks 43 (Notable)
- CVSS v4.0 9.4 critical
- Exposed product class: file transfer
- Covered by 2 independent sources
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-105420 on this site · NVD · CVE.org · Vulnpedia
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