CVE-2026-90863

CRITICAL CVSS 3.1: 9.1 EPSS 0.66%
Updated Oct 30, 2026
Missing
Parameter Value
CVSS 9.1 (CRITICAL)
Affected Versions before 2024.0.7
Type CWE-862 (Missing Authorization), CWE-915
Vendor Missing
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products

progress software:ws_ftp server