CVE-2026-90866
Progress Software WS_FTP Server
- Progress Software WS_FTP Server
- Critical
- CVSS 9.1
- Fixed version listed
Summary
A path traversal vulnerability in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow a delegated Host Administrator to access locations outside their authorized scope, potentially enabling remote code execution.
From the CVE record.
What to do
Fixed version listed
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| Progress Software WS_FTP Server (Windows) | before 2024.0.7; before 2025.0.4 | 2025.0.4 |
Advisories and fixes
- Vendor advisory progress.lightning.force.com
Scores and signals
- Exploitation
- No known exploitation
- Severity
- Critical, CVSS 9.1 (v3.1, scored by ProgressSoftware)
- Weakness
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'); CWE-434: Unrestricted Upload of File with Dangerous Type
- Vendor
- Progress Software, WS_FTP Server
Timeline
- First listed as critical by cve.now. Affected and fixed versions come from the CVE record, once one is published.