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    CVE-2026-26067

    October is a Content Management System (CMS) and web platform. Prior to 3.7.14 and 4.1.10, a server-side information disclosure vulnerability was identified in the handling of CSS preprocessor files. Backend users with Editor permissions could craft .less, .sass, or .scss files that leverage the compiler's import functionality to read arbitrary files from the server. This worked even with cms.safe_mode enabled. This vulnerability is fixed in 3.7.14 and 4.1.10.

    Published:Apr 21, 2026
    Last Modified:Apr 22, 2026
    EPS:Apr 21, 2026
    EPSS Score:0.00037
    CVSS Score:4.9

    Affected Products

    Vendor
    Octobercms
    Product
    October

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2025-61674 (CVSS 6.1) — October is a Content Management System (CMS) and web platform. Prior to versions 3.7.13 and 4.0.12, a cross-si…
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    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