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CVE-2025-48389— FreeScout Vulnerable to Deserialization of Untrusted Data

Quick assessment

Affected
freescout-help-desk freescout
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FreeScout是FreeScout公司的一个使用 PHP（Laravel 框架）构建的超轻量级且功能强大的免费开源帮助台和共享收件箱。 FreeScout 1.8.178之前版本存在代码问题漏洞，该漏洞源于反序列化不可信数据，可能导致任意代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 0.85% · P55

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-48389

Vulnerability Information
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Vulnerability Title
FreeScout Vulnerable to Deserialization of Untrusted Data
Source: CVE Program / CVE List V5
Vulnerability Description
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, FreeScout is vulnerable to deserialization of untrusted data due to insufficient validation. Through the set function, a string with a serialized object can be passed, and when getting an option through the get method, deserialization will occur, which will allow arbitrary code execution This issue has been patched in version 1.8.178.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
FreeScout 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeScout是FreeScout公司的一个使用 PHP（Laravel 框架）构建的超轻量级且功能强大的免费开源帮助台和共享收件箱。 FreeScout 1.8.178之前版本存在代码问题漏洞，该漏洞源于反序列化不可信数据，可能导致任意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
freescout-help-desk freescout < 1.8.178 -

II. Public POCs for CVE-2025-48389

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III. Intelligence Information for CVE-2025-48389

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Vendor Advisories for CVE-2025-48389 (1)

Same Patch Batch · freescout-help-desk · 2025-05-29 · 8 CVEs total

CVE-2025-48388 FreeScout Has Insufficient Protection Against CRLF-injection
CVE-2025-48390 FreeScout Vulnerable to Remote Code Execution (RCE)
CVE-2025-48471 FreeScout Vulnerable to Arbitrary File Upload
CVE-2025-48472 FreeScout Vulnerable to Insufficient Authorization
CVE-2025-48473 FreeScout Vulnerable to Insufficient Authorization
CVE-2025-48474 FreeScout Vulnerable to Insufficient Authorization
CVE-2025-48475 FreeScout Vulnerable to Insufficient Authorization

IV. Related Vulnerabilities

Same product: freescout
Same vendor: freescout-help-desk
Same weakness: CWE-502

V. Comments for CVE-2025-48389

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