MediumCVE-2026-90872

    Server-Side Script Injection in Manager Web UI in Progress WS_FTP Server (CVE-2026-90872)

    Published Last modified Sources: pwn.watch, CVE.org

    What is affected, what to do

    Improper neutralization of directives in dynamically evaluated code in the Manager web console of Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an authenticated Manager administrator to execute arbitrary commands with the privileges of the WS_FTP Server IIS worker process.

    Update Progress Software WS_FTP Server to version 2024.0.7, Progress Software WS_FTP Server to version 2025.0.4.

    Affected
    • Progress Software WS_FTP Server lt *..2024.0.7
    • Progress Software WS_FTP Server lt *..2025.0.4
    Fixed in
    • Progress Software WS_FTP Server 2024.0.7
    • Progress Software WS_FTP Server 2025.0.4

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    6.6

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: Vendor (CNA), CVSS v3

    6.6

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: pwn.watch, CVE.org

    —

    EPSS score

    No value is available for this vulnerability.

    Show all metrics
    Severity
    Medium
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    63.00 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    6.6 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    6.6
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-95, CWE-94

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    Improper neutralization of directives in dynamically evaluated code in the Manager web console of Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an authenticated Manager administrator to execute arbitrary commands with the privileges of the WS_FTP Server IIS worker process.

    Source: pwn.watch, cvelistv5, NVD (NIST)

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    Progress SoftwareWS_FTP Server
    • < 2025.0.4
    • < 2024.0.7
    • 2025.0.4
    • 2024.0.7

    Vendors and products

    Weakness classes (CWE)

    • CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

      Variant

      The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. "eval").

      Entry at MITRE CWE-95

    • CWE-94Improper Control of Generation of Code ('Code Injection')

      Base

      The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

      Entry at MITRE CWE-94

    References & sources

    • progress.lightning.force.comlightning/r/Knowledge__kav/ka7Pb000001vl86IAA/viewVendor advisory
    • pwn.watchpwn.watch: Progress WS_FTP Server: unauthenticated admin credential exposure (CVE-2026-84295, CVSS 10) and OS command injection, fixed in 2024.0.7 and 2025.0.4pwn-watch
    • CVE.org (MITRE)CVE-2026-84295: Improper authentication in Progress WS_FTP Serverpwn-watch
    • CVE.org (MITRE)CVE-2026-90868: OS command injection in Progress WS_FTP Serverpwn-watch
    • CVE.org (MITRE)CVE-2026-90865: OS command injection in Progress WS_FTP Serverpwn-watch
    • NVD (NIST)NVD: CVE-2026-84295pwn-watch
    • CVE.org (MITRE)CVE-2026-90872: Server-side script injection in WS_FTP Server Manager web UIpwn-watch
    • docs.progress.comWhat's New in WS_FTP Server 2025 (release history)pwn-watch
    • docs.progress.comWhat's New in WS_FTP Server 2024 (release history)pwn-watch

    Changes to this CVE

    Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

    1. Receivedprogress.com

      CVSS V3.1: AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

      Weakness type: CWE-94, CWE-95

      Description added or changed

      Show 6 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Descriptionadded
      —
      Improper neutralization of directives in dynamically evaluated code in the Manager web console of Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an authenticated Manager administrator to execute arbitrary commands with the privileges of the WS_FTP Server IIS worker process.
      CVSSadded
      —
      AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
      Weakness type (CWE)added
      —
      CWE-94
      Weakness type (CWE)added
      —
      CWE-95
      Affected versions (publisher)added
      —
      New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/90xxx/CVE-2026-90872.json">CVE-2026-90872</a>
      Referenceadded
      —
      https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view

      Source identifier: security@progress.com

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