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TI-2026-82611 Aliases CVE-2026-90866GHSA-p4xx-h8r7-vfh5

Path traversal in Progress WS_FTP Server lets Host Administrators escape scope

Priority MEDIUM 43CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

Progress Software WS_FTP Server versions before 2024.0.7 and before 2025.0.4 on Windows are affected. A path traversal flaw (CWE-22) lets a delegated Host Administrator reach locations outside their authorized scope. An attacker with high privileges on the network can exploit it, and the flaw could enable remote code execution.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0073 54th percentileScored 2026-11-07
Fix Fixed WS_FTP Server (Progress Software): 2024.0.7, 2025.0.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ProgressWS_FTP Serverbefore 2024.0.7; before 2025.0.42024.0.7, 2025.0.4Patch availableCNA
  • WS_FTP Server VendorProgress Affected before 2024.0.7; before 2025.0.4 Fixed in 2024.0.7, 2025.0.4 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:progress:ws_ftp_server:*:*:*:*:*:*:*:*——Progress
  • cpe:2.3:a:progress:ws_ftp_server:*:*:*:*:*:*:*:* Versions — — ·Progress

Remediation

Upgrade WS_FTP Server to version 2024.0.7 for the 2024 branch or to version 2025.0.4 for the 2025 branch.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA WS_FTP Server (Progress Software) Fixed in 2024.0.7, 2025.0.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Progress Software WS_FTP Server — progress.lightning.force.com/lightning/r/Knowledge__kav/ka7…

    15 records Highest priority Priority MEDIUM 6 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2026-82604 Improper authentication in Progress WS_FTP Server exposes credentialsPriority MEDIUM 50
    • TI-2026-82613 OS command injection in Progress WS_FTP ServerPriority MEDIUM 46
    • TI-2026-82610 Command injection via FTP notification variables in Progress WS_FTP ServerPriority MEDIUM 43
    Show all 15 records → Advisory →

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-90866
  2. 2026-10-29 Alias added: GHSA-p4xx-h8r7-vfh5
  3. 2026-10-30 CISA SSVC decision points changed
  4. 2026-10-30 Priority changed: MEDIUM → LOW
  5. 2026-10-30 CISA SSVC decision points changed
  6. 2026-10-31 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2026-07083 Command injection in Progress LoadMaster KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-06182 WhatsUp Gold HasErrors SQL Injection Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-04541 WhatsUp Gold GetFileWithoutZip Directory Traversal Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-04060 Registration Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-01127 LoadMaster Pre-Authenticated OS Command Injection KEVCVSS 3.1CRITICAL 10.0
  • TI-2023-20934 WS_FTP Server Ad Hoc Transfer Module .NET Deserialization Vulnerability KEVCVSS 3.1CRITICAL 10.0
See all 436 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences