CVE-2026-90866Critical· 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 locations outside their authorized scope, potentially enabling remo…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 50.1 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
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
0.7%
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.
ws_ftp_server < 2024.0.7ws_ftp_server < 2025.0.4Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Limit delegation of Host Administrator privileges to trusted staff, and periodically audit virtual folder physical paths to confirm they remain within their assigned host root. Contact Progress Software Technical Support for guidance on available mitigations.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-90864Critical· 9.1Host Administrator Path Containment 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