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    CVE-2026-27508

    Smoothwall Express versions prior to 3.1 Update 13 contain a reflected cross-site scripting vulnerability in the /redirect.cgi endpoint due to improper sanitation of the url parameter. Attackers can craft malicious URLs with javascript: schemes that execute arbitrary JavaScript in victims' browsers when clicked through the unsanitized link.

    Published:Mar 30, 2026
    Last Modified:Apr 15, 2026
    EPS:Mar 30, 2026
    EPSS Score:0.00031
    CVSS Score:5.4

    Affected Products

    Vendor
    Smoothwall
    Product
    Express
    Vendor
    Smoothwall
    Product
    Smoothwall Express

    Exploits

    No exploit reference

    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