CVE-2026-90861: medium-severity vulnerability in Progress Software WS_FTP Server
Password Disclosure via Activity Logs Enabling Administrator Privilege Escalation in WS_FTP Server
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.6epss 0.3%
Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows may expose a user's password in clear text to another administrator, who could use it to gain broader administrative access to the server.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
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%