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CVE-2025-58163 – FreeScout Remote Code Execution Vulnerability

The following table lists the changes that have been made to the
CVE-2025-58163 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • CVE Modified
    by [email protected]

    Sep. 03, 2025

    Action Type Old Value New Value
    Changed Description FreeScout is a free help desk and shared inbox built with PHP’s Laravel framework. In versions 1.8.185 and below, the application performs deserialization of data that can allow authenticated attackers with knowledge of the application’s APP_KEY to achieve remote code execution. The vulnerability can be exploited via endpoint: `/help/{mailbox_id}/auth/{customer_id}/{hash}/{timestamp}` where the `customer_id` and `timestamp` parameters are processed through the decrypt function in `app/Helper.php` without proper validation. The vulnerable code performs decryption using Laravel’s built-in encryption functions, which subsequently deserializes the decrypted payload without sanitization. This is fixed in version 1.8.186. FreeScout is a free help desk and shared inbox built with PHP’s Laravel framework. Versions 1.8.185 and earlier contain a deserialization of untrusted data vulnerability that allows authenticated attackers with knowledge of the application’s APP_KEY to achieve remote code execution. The vulnerability is exploited via endpoint, e.g.: `/help/{mailbox_id}/auth/{customer_id}/{hash}/{timestamp}` where the `customer_id` and `timestamp` parameters are processed through the decrypt function in `app/Helper.php` without proper validation. The code decrypts using Laravel’s built-in encryption functions, which subsequently deserialize the decrypted payload without sanitization, allowing attackers to craft malicious serialized PHP objects using classes to trigger arbitrary command execution. This is fixed in version 1.8.186.
    Added Reference https://github.com/freescout-help-desk/freescout/commit/e2de65f3f32f825b4ec5558643ed81438c9a6bc6
    Removed Reference https://github.com/freescout-help-desk/freescout/commit/1794763bbb17509af3183e667d695056545ef62a
  • New CVE Received
    by [email protected]

    Sep. 03, 2025

    Action Type Old Value New Value
    Added Description FreeScout is a free help desk and shared inbox built with PHP’s Laravel framework. In versions 1.8.185 and below, the application performs deserialization of data that can allow authenticated attackers with knowledge of the application’s APP_KEY to achieve remote code execution. The vulnerability can be exploited via endpoint: `/help/{mailbox_id}/auth/{customer_id}/{hash}/{timestamp}` where the `customer_id` and `timestamp` parameters are processed through the decrypt function in `app/Helper.php` without proper validation. The vulnerable code performs decryption using Laravel’s built-in encryption functions, which subsequently deserializes the decrypted payload without sanitization. This is fixed in version 1.8.186.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-502
    Added Reference https://github.com/freescout-help-desk/freescout/commit/1794763bbb17509af3183e667d695056545ef62a
    Added Reference https://github.com/freescout-help-desk/freescout/releases/tag/1.8.186
    Added Reference https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-j94w-q9gj-c37g
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