---
id: "CVE-2026-115341"
page: "https://infrastack.ai/live/CVE-2026-115341"
kind: "vulnerability"
aliases: ["CVE-2026-115341"]
title: "WS_FTP Server: authenticated users can reach files outside their scope"
severity: "high"
cvss: 7.7
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["file-transfer", "vendor", "windows", "ws_ftp-server"]
not_affected_if: ["auth-required", "no-thin-client-web-transfer", "non-windows"]
published_at: "2026-11-09T17:17:11+00:00"
first_seen_at: "2026-11-09T17:27:38+00:00"
updated_at: "2026-11-09T17:28:48+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115341", "first_seen_at": "2026-11-09T17:27:38+00:00"}]
exploit_sources: []
---

# WS_FTP Server: authenticated users can reach files outside their scope

Link for people: https://infrastack.ai/live/CVE-2026-115341 (this .md is for agents)

WS_FTP Server's Thin Client Web Transfer component on Windows lets a logged-in FTP user access files outside the folders they are meant to see. An attacker who already has a valid FTP account can read files they should not be able to reach.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed WS_FTP Server version in the admin console or on the server.
- Confirm whether the Thin Client Web Transfer component is in use.
- Source does not say how to confirm the exact exposure beyond the version check.

## Fix

- Move WS_FTP Server to `2025.0.5` or later.

## Timeline

- 2026-11-09T17:27:38+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115341

## From the sources

Improper access restrictions in the Thin Client Web Transfer component of Progress Software WS_FTP Server versions prior to 2025.0.5 on Windows could allow an authenticated FTP user to access files outside their intended scope.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_