CVE-2026-90864Critical· 9.1▾ MidnightA 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 or modify files outside their authorized scope.
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 50.1 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.5%
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 or modify files outside their authorized scope.
ws_ftp_server < 2024.0.7ws_ftp_server < 2025.0.4Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Limit delegated administrative privileges to trusted personnel. Review folder configurations and account permissions to ensure access remains within authorized boundaries. Contact Progress Software Technical Support for guidance on available mitigations.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-90866Critical· 9.1Virtual Folder Path Confinement Bypass in Progress WS_FTP Server
CVE-2026-90871Medium· 5.3Path Traversal Leading to File Deletion in Ad Hoc Transfer and Web Transfer in Progress WS_FTP Server
CVE-2026-84294High· 7.7Information Disclosure in Ad Hoc Transfer in Progress WS_FTP Server
CVE-2026-84296Medium· 6.8SSH Multi-Factor Authentication Bypass in Progress WS_FTP Server
CVE-2026-90863Critical· 9.1Privilege Escalation via Missing Authorization in WS_FTP Manager
CVE-2026-84295Critical· 10.0Improper Authentication in Progress WS_FTP Server