Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freescout | Freescout | < 1.8.186 |
Related Weaknesses (CWE)
References
- https://github.com/freescout-help-desk/freescout/commit/e2de65f3f32f825b4ec55586Patch
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.186Release Notes
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-j94w-qExploitVendor Advisory
FAQ
What is CVE-2025-58163?
CVE-2025-58163 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 atta...
How severe is CVE-2025-58163?
CVE-2025-58163 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-58163?
Check the references section above for vendor advisories and patch information. Affected products include: Freescout Freescout.