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    CVE-2026-90862

    Improper authentication in the Web Transfer Module of Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an attacker with a user’s password to access certain files associated with that account without satisfying multi-factor authentication requirements.

    Published:Oct 29, 2026
    Last Modified:Oct 30, 2026
    EPS:Oct 29, 2026
    EPSS Score:0.00222
    CVSS Score:4.3

    Affected Products

    Vendor
    Progress
    Product
    Ws Ftp Server
    Vendor
    Progress Software
    Product
    Ws Ftp Server

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-114 Authentication Abuse
    CAPEC-115 Authentication Bypass
    CAPEC-151 Identity Spoofing
    CAPEC-16 Dictionary-based Password Attack
    CAPEC-194 Fake the Source of Data
    CAPEC-22 Exploiting Trust in Client
    CAPEC-49 Password Brute Forcing
    CAPEC-509 Kerberoasting
    CAPEC-55 Rainbow Table Password Cracking
    CAPEC-555 Remote Services with Stolen Credentials
    CAPEC-560 Use of Known Domain Credentials
    CAPEC-561 Windows Admin Shares with Stolen Credentials
    CAPEC-565 Password Spraying
    CAPEC-57 Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
    CAPEC-593 Session Hijacking
    CAPEC-600 Credential Stuffing
    CAPEC-633 Token Impersonation
    CAPEC-644 Use of Captured Hashes (Pass The Hash)
    CAPEC-645 Use of Captured Tickets (Pass The Ticket)
    CAPEC-650 Upload a Web Shell to a Web Server
    CAPEC-652 Use of Known Kerberos Credentials
    CAPEC-653 Use of Known Operating System Credentials
    CAPEC-70 Try Common or Default Usernames and Passwords
    CAPEC-94 Adversary in the Middle (AiTM)

    Related CVEs

    CVE-2026-90872 (CVSS 6.6) — Improper neutralization of directives in dynamically evaluated code in the Manager web console of Progress Sof…
    CVE-2026-90871 (CVSS 5.3) — Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior …
    CVE-2026-90870 (CVSS 5.3) — A missing release of backend receiver sessions in the Ad Hoc Transfer component of Progress Software WS_FTP Se…
    CVE-2026-90869 (CVSS 7.5) — A remote attacker who knows a valid account's enrolled SSH public key can terminate the shared SSH service in …
    CVE-2026-90868 (CVSS 9.9) — An OS command injection vulnerability in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0…
    CVE-2026-90867 (CVSS 8.1) — Improper access control in the Web Admin console of Progress Software WS_FTP Server versions prior to 2024.0.7…
    CVE-2026-90866 (CVSS 9.1) — A path traversal vulnerability in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on W…
    CVE-2026-90865 (CVSS 9) — An OS command injection vulnerability in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0…
    CVE-2026-90864 (CVSS 9.1) — A path traversal vulnerability in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on W…
    CVE-2026-90863 (CVSS 9.1) — Missing authorization in the administrative interface of Progress Software WS_FTP Server versions prior to 202…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High