Watchguard · Watchguard Fireware · CVE-2025-0178
**Name of the Vulnerable Software and Affected Versions**
WatchGuard Fireware OS versions 12.0 through 12.11
**Description**
The issue is related to improper input validation, allowing an attacker to manipulate the value of the `HTTP Host` header in requests sent to the Web UI. This could be exploited to redirect users to malicious websites, poison the web cache, or inject malicious JavaScript into responses sent by the Web UI.
**Recommendations**
For versions 12.0 through 12.11, update to a version that includes the fix for this issue.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.