CVE Details
Basic Information
| Title | FreeScout’s deserialization of untrusted data leads to Remote Code Execution |
|---|---|
| Type | cve |
| Published | 2025-07-26T03:35:17.444Z |
| Modified | 2025-07-26T03:35:17.444Z |
Product Information
| Vendor | freescout-help-desk |
|---|---|
| Product | freescout |
| Version | < 1.8.186 |
CVSS Information
| Base Score | 8.6 (HIGH) |
|---|---|
| Attack Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
AI Analysis
| AI Description | A critical deserialization vulnerability in FreeScout’s /conversation/ajax endpoint allows remote code execution for authenticated users with the APP_KEY, enabling full web application compromise. |
|---|---|
| AI Severity | Critical |
| AI Vendor | FreeScout Community |
| AI Product | FreeScout |
| AI Version | 1.8.185 |
Affected Products
- freescout-help-desk freescout < 1.8.186
Additional Information
| CWE List | CWE-502 |
|---|---|
| Source | GitHub_M |
Description
FreeScout is a lightweight free open source help desk and shared inbox built with PHP (Laravel framework). In versions 1.8.185 and below, there is a critical deserialization vulnerability in the /conversation/ajax endpoint that allows authenticated users with knowledge of the APP_KEY to achieve remote code execution. The vulnerability occurs when the application processes the attachments_all and attachments POST parameters through the insecure Helper::decrypt() function, which performs unsafe deserialization of user-controlled data without proper validation. This flaw enables attackers to create arbitrary objects and manipulate their properties, leading to complete compromise of the web application. This is fixed in version 1.8.186.