CVE-2025-58163
FreeScout Remote Code Execution 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.
INFO
Published Date :
Sept. 3, 2025, 2:15 a.m.
Last Modified :
Sept. 3, 2025, 3:15 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-58163
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update FreeScout to version 1.8.186 or later.
- Ensure APP_KEY is kept secret.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-58163.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-58163 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-58163
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-58163 vulnerability anywhere in the article.
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.
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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