Improper Access Control in Progress Software WS_FTP Server Thin Client Component
CVE-2026-115341

7.7HIGH

Key Information:

Vendor

Progress Software
Status
Ws Ftp Server
Vendor
CVE Published:
9 November 2026

What is CVE-2026-115341?

The Thin Client Web Transfer component of Progress Software's WS_FTP Server exhibits improper access control mechanisms. This vulnerability allows authenticated FTP users to gain unauthorized access to files outside their designated scope. Affected users on versions prior to 2025.0.5 may find that their file security is compromised, leading to potential data breaches and unauthorized information exposure.

Affected Version(s)

WS_FTP Server Windows 0 < 2025.0.5

References

https://community.progress.com/s/article/WS-FTP-Server-Se...
vendor-advisory

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mateusz Mieczkowski (rexnets)
.