CVE-2025-58163

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/freescout-help-desk/freescout/commit/e2de65f3f32f825b4ec5558643ed81438c9a6bc6	Patch
https://github.com/freescout-help-desk/freescout/releases/tag/1.8.186	Release Notes
https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-j94w-q9gj-c37g	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:freescout:freescout:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-09-03 02:15

Updated : 2025-09-08 15:03

NVD link : CVE-2025-58163

Mitre link : CVE-2025-58163

CVE.ORG link : CVE-2025-58163

JSON object : View

Products Affected

freescout

freescout

CWE

CWE-502

Deserialization of Untrusted Data

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