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CVE-2025-58163

8.8 · HIGH

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework.

Published Sep 3, 2025CWE-502EPSS 0.72%

Overview

CVE-2025-58163 is a high-severity vulnerability. It was published on September 3, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/freescout-help-desk/freescout/commit/e2de65f3f32f825b4ec5558643ed81438c9a6bc6GitHubgithub.com/freescout-help-desk/freescout/releases/tag/1.8.186GitHubgithub.com/freescout-help-desk/freescout/security/advisories/GHSA-j94w-q9gj-c37g

How CyberStrike helps

Frequently asked questions

What is CVE-2025-58163?

CVE-2025-58163 is a high-severity vulnerability. It was published on September 3, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-58163?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-58163?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-58163?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-58163 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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