CVE-2026-105420
CRITICAL
INFO
Priority: 0.00
BB Relevance:
64/100
Published: 2026-10-28
Modified: 2026-10-28
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
High
UI:
None
AT:
None
VC:
High
VI:
High
VA:
High
Description
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.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| Wing Soft Technology | Wing FTP Server | 0 < 8.2.6 |
| Wing Soft Technology | Wing FTP Server | 0 < 8.2.6 |