Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to
Source GCVE Database
Not known to be exploited · CVSS 5.3 Medium : upgrade to 2025.0.4 or 2024.0.7 when convenient.
Data as of 29 Oct 2026, 19:15 UTC
Thin evidence
One scorer or none| CNA (ProgressSoftware) | CVSS 3.1 | 5.3 |
|---|
- Patch
- Available – fixed in 2025.0.4, 2024.0.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade WS_FTP Server to 2025.0.4 or 2024.0.7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Progress SoftwareWS_FTP Server | Affected
| Fixed in
|
| Progress SoftwareWS_FTP Server | Affected
| Fixed in
|
AI-suggested
A fix is available in WS_FTP Server versions 2024.0.7 and 2025.0.4. Users should upgrade to these or later versions to remediate the vulnerability. No additional mitigation guidance is provided in the available data.
Description
CVE-2026-90871 is a directory traversal vulnerability in Progress Software WS_FTP Server on Windows versions prior to 2024.0.7 and 2025.0.4. It allows an unauthenticated attacker to access or modify files outside the intended restricted directory.