CVE-2026-34442
FreeScout: Host Header Injection Leading to External Resource Loading and Open Redirect in FreeScout
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-20 CWE-601 CWE-829 |
| Vendor | freescout-help-desk |
| Product | freescout |
| Published | Mar 31, 2026 |
| Last Updated | Apr 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
freescout-help-desk / freescout
< 1.8.211