CVE-2026-90871: medium-severity vulnerability in Progress Software WS_FTP Server
Path Traversal Leading to File Deletion in Ad Hoc Transfer and Web Transfer in Progress WS_FTP Server
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
Progress Software · WS_FTP ServerRelated CVEs — Progress Software WS_FTP Server
In the same product, most dangerous first.
CVE-2026-90868CRITICALOS Command Injection in Progress WS_FTP ServerEPSS 1.5%CVE-2026-90865CRITICALCommand Injection via FTP Notification Variables in Progress WS_FTP ServerEPSS 1.1%CVE-2026-90866CRITICALVirtual Folder Path Confinement Bypass in Progress WS_FTP ServerEPSS 0.7%CVE-2026-90863CRITICALPrivilege Escalation via Missing Authorization in WS_FTP ManagerEPSS 0.7%CVE-2026-84295CRITICALImproper Authentication in Progress WS_FTP ServerEPSS 0.6%CVE-2026-90864CRITICALHost Administrator Path Containment Bypass in Progress WS_FTP ServerEPSS 0.5%