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    CVE-2025-40631

    HTTP host header injection vulnerability in Icewarp Mail Server affecting version 11.4.0. By modifying the Host header and adding a payload, arbitrary JavaScript code can be executed on page load. The user must interact with a malicious link to be redirected.

    Published:May 16, 2025
    Last Modified:Oct 9, 2025
    EPS:May 16, 2025
    EPSS Score:0.00032
    CVSS Score:6.1

    Affected Products

    Vendor
    Icewarp
    Product
    Mail Server

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-40632 (CVSS 2) — Cross-site scripting (XSS) in Icewarp Mail Server affecting version 11.4.0. This vulnerability allows an attac…
    CVE-2025-40630 (CVSS 5.1) — Open redirection vulnerability in IceWarp Mail Server affecting version 11.4.0. This vulnerability allows an a…
    CVE-2023-39700 (CVSS 6.1) — IceWarp Mail Server v10.4.5 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via…
    CVE-2023-39699 (CVSS 9.8) — IceWarp Mail Server v10.4.5 was discovered to contain a local file inclusion (LFI) vulnerability via the compo…
    CVE-2021-36580 (CVSS 6.1) — Open Redirect vulnerability exists in IceWarp MailServer IceWarp Server Deep Castle 2 Update 1 (13.0.1.2) via …
    CVE-2020-27982 (CVSS 6.1) — IceWarp 11.4.5.0 allows XSS via the language parameter.…
    CVE-2020-14066 (CVSS 8.8) — IceWarp Email Server 12.3.0.1 allows remote attackers to upload JavaScript files that are dangerous for client…
    CVE-2020-14065 (CVSS 6.5) — IceWarp Email Server 12.3.0.1 allows remote attackers to upload files and consume disk space.…
    CVE-2020-14064 (CVSS 6.5) — IceWarp Email Server 12.3.0.1 has Incorrect Access Control for user accounts.…
    CVE-2019-19265 (CVSS 6.1) — IceWarp WebMail Server 12.2.0 and 12.1.x before 12.2.1.1 (and probably earlier versions) allows XSS (issue 1 o…

    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