CVE-2025-54366 FreeScout's deserialization of untrusted data leads to Remote Code Execution

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 APPKEY to achieve remo...

CVE-2025-54366 FreeScout's deserialization of untrusted data leads to Remote Code Execution

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 APPKEY to achieve remo...

CVE-2025-54366

Summary: FreeScout prior to v1.8.186 is affected by a deserialization vulnerability in the /conversation/ajax endpoint. The issue arises when processing attachments_all and attachments via the insecure Helper::decrypt() function, which deserializes user-controlled data without proper validation. ...

PT-2025-30950 · Freescout · Freescout

Name of the Vulnerable Software and Affected Versions: FreeScout versions prior to 1.8.186 Description: FreeScout is a lightweight free open source help desk and shared inbox built with PHP Laravel framework. Versions prior to 1.8.186 contain a critical deserialization vulnerability in the...

FreeScout 代码问题漏洞

FreeScout is an open source helpdesk system built on the PHP Laravel framework, designed to provide users with functionality similar to Zendesk or Help Scout, but without sacrificing privacy or freedom. Freescout suffers from a deserialization vulnerability that stems from an application that...

PT-2025-102: Deserialization of untrusted data in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize unsafe data, gain control over application objects and impair its operation. Vulnerability status: Confirmed by vendor Date of vulnerability remediation: 19.07.2025...

PT-2025-105: Deserialization of untrusted data leads to Remote code execution (RCE) in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize tampered data, create objects of arbitrary classes and manipulate their properties, resulting in remote code execution. Vulnerability status: Confirmed by vendor Date of...

PT-2025-103: Deserialization of untrusted data in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize data, instantiate arbitrary objects and alter their properties, causing severe disruption of the system. Vulnerability status: Confirmed by vendor Date of vulnerability...

PT-2025-100: Deserialization of untrusted data in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize data, create arbitrary objects with full property control, leading to serious security breaches. Vulnerability status: Confirmed by vendor Date of vulnerability...

PT-2025-104: Deserialization of untrusted data in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize untrusted data, craft arbitrary objects and control their properties, thereby compromising the application’s functionality. Vulnerability status: Confirmed by vendor Date...

PT-2025-101: Deserialization of untrusted data in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize manipulated data, control objects and disrupt the application. Vulnerability status: Confirmed by vendor Date of vulnerability remediation: 19.07.2025 Recommendations:...

PT-2025-99: Deserialization of untrusted data in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize untrusted data, manipulate objects and impair system functionality. Vulnerability status: Confirmed by vendor Date of vulnerability remediation: 19.07.2025 Recommendation...

PT-2025-97: Deserialization of untrusted data in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize altered data, create arbitrary objects and disrupt normal system operation. Vulnerability status: Confirmed by vendor Date of vulnerability remediation: 19.07.2025...

PT-2025-98: Deserialization of untrusted data in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize data, gain control over application objects and cause malfunction. Vulnerability status: Confirmed by vendor Date of vulnerability remediation: 19.07.2025 Recommendations...

PT-2025-96: Deserialization of untrusted data leads to Remote code execution (RCE) in FreeScout

The vulnerability was identified in FreeScout, version 1.8.182. The discovered vulnerability allows an attacker to deserialize arbitrary objects and fully control their properties, leading to total compromise of the web‑application logic and remote code execution RCE. Vulnerability status:...

The vulnerability of the FreeScout support service management system lies in the improper implementation of the sequence of actions to be performed, allowing a intruder to gain unauthorized access to the system’s functional capabilities.

The vulnerability of the FreeScout support service management system is related to the improper implementation of the sequence of actions to be performed. Exploiting this vulnerability can allow a malicious actor, operating remotely, to gain unauthorized access to the system’s functions...

The vulnerability of the FreeScout support service management system lies in the lack of measures to protect the website structure. This allows attackers to disclose confidential information and carry out CSRF attacks.

The vulnerability of the FreeScout support service management system lies in the lack of measures taken to protect the website structure. Exploiting this vulnerability could allow a malicious actor to disclose confidential information and carry out a CSRF attack using a specially created website...

The vulnerability of the FreeScout support service management system lies in the lack of measures to protect the website structure. This allows attackers to disclose confidential information and gain control over user sessions.

The vulnerability of the FreeScout support service management system lies in the lack of measures taken to protect the website structure. Exploiting this vulnerability can allow a malicious actor to disclose confidential information and gain control over user sessions...

The vulnerability of the FreeScout support service management system lies in the lack of measures to protect the website structure. This allows attackers to disclose confidential information and gain control over user sessions.

The vulnerability of the FreeScout support service management system lies in the lack of measures taken to protect the website structure. Exploiting this vulnerability can allow a malicious actor to disclose confidential information and gain control over user sessions...

The vulnerability of the FreeScout support service management system, which arises due to the failure to address the issue of CRLF sequences (returning a carriage followed by a line break), allows a hacker to execute arbitrary code.

The vulnerability of the FreeScout support service management system exists due to the lack of measures to neutralize CRLF sequences returning the cursor after translating a line. Exploiting this vulnerability allows an attacker to execute arbitrary code by sending special characters into the...