CVE-2026-90863

Privilege Escalation via Missing Authorization in WS_FTP Manager

Published Oct 29, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
Missing authorization in the administrative interface of Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow a delegated Host Administrator to exceed their authorized scope, potentially enabling arbitrary command execution with elevated privileges and complete compromise of the underlying server.

Remediation

Vendor Workaround

Limit delegation of the Host Administrator role to trusted staff, and review existing Host Administrator accounts and their setting's scope and permissions. Contact Progress Software Technical Support for guidance on available mitigations.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Progress
Progress ws Ftp Server
Progress Software
Progress Software ws Ftp Server
Vendors & Products Progress
Progress ws Ftp Server
Progress Software
Progress Software ws Ftp Server
Type Values Removed Values Added
Description Missing authorization in the administrative interface of Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow a delegated Host Administrator to exceed their authorized scope, potentially enabling arbitrary command execution with elevated privileges and complete compromise of the underlying server.
Title Privilege Escalation via Missing Authorization in WS_FTP Manager
Weaknesses CWE-862
CWE-915
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ProgressSoftware
Published
Updated
Oct 30, 2026, 5:18 PM
Reserved
Sep 14, 2026, 6:09 AM
Status
Awaiting Analysis
Published
Oct 29, 2026, 4:20 PM
Modified
Oct 30, 2026, 6:18 PM