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    CVE-2026-28281

    InstantCMS is a free and open source content management system. Prior to 2.18.1, InstantCMS does not validate CSRF tokens, which allows attackers grant moderator privileges to users, execute scheduled tasks, move posts to trash, and accept friend requests on behalf of the user. This vulnerability is fixed in 2.18.1.

    Published:Mar 9, 2026
    Last Modified:Apr 16, 2026
    EPS:Mar 9, 2026
    EPSS Score:0.00018
    CVSS Score:7.1

    Affected Products

    Vendor
    Instantcms
    Product
    Icms2
    Vendor
    Instantcms
    Product
    Instantcms

    Exploits

    https://github.com/instantsoft/icms2/security/advisories/GHSA-pp43-262q-h73m

    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