EUVD-2026-17673CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
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Description
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, host header manipulation in FreeScout version (http://localhost:8080/system/status) allows an attacker to inject an arbitrary domain into generated absolute URLs. This leads to External Resource Loading and Open Redirect behavior. When the application constructs links and assets using the unvalidated Host header, user requests can be redirected to attacker-controlled domains and external resources may be loaded from malicious servers. This issue has been patched in version 1.8.211.
Analysis
Host header manipulation in FreeScout prior to version 1.8.211 allows unauthenticated remote attackers to inject arbitrary domains into application-generated absolute URLs, enabling open redirects and external resource loading attacks. The vulnerability exploits unvalidated Host header values to construct malicious links and asset references, potentially redirecting users to attacker-controlled domains or loading external resources from compromised servers. …
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