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    CVE-2026-40496

    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, attachment download tokens are generated using a weak and predictable formula: `md5(APP_KEY + attachment_id + size)`. Since attachment_id is sequential and size can be brute-forced in a small range, an unauthenticated attacker can forge valid tokens and download any private attachment without credentials. Version 1.8.213 fixes the issue.

    Published:Apr 21, 2026
    Last Modified:Apr 23, 2026
    EPS:Apr 21, 2026
    EPSS Score:0.00046
    CVSS Score:9.1

    Affected Products

    Vendor
    Freescout
    Product
    Freescout
    Vendor
    Freescout Helpdesk
    Product
    Freescout

    Exploits

    https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-2783-wxmm-wmwr

    Related CVEs

    CVE-2026-40565 (CVSS 6.1) — FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, FreeScout's linkify() …
    CVE-2026-40498 (CVSS 8.9) — FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, an unauthenticated att…
    CVE-2026-40497 (CVSS 8.1) — FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, FreeScout's `Helper::s…
    CVE-2026-35584 (CVSS 6.9) — FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.212, the endpo…
    CVE-2026-39384 (CVSS 7.6) — FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.212, FreeScout…
    CVE-2026-34442 (CVSS 5.4) — FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, h…
    CVE-2026-34443 (CVSS 6.9) — FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, c…
    CVE-2026-32754 (CVSS 9.3) — FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Versions 1.8.208 and below …
    CVE-2026-32753 (CVSS 8.5) — FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. In versions 1.8.208 and bel…
    CVE-2026-32752 (CVSS 0) — FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. In versions 1.8.208 and bel…

    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