This indicates an attack attempt against a Cross-Site Scripting vulnerability in ESF pfSense.
The vulnerability is due to insufficient validation of a maliciously crafted HTTP request. An attacker can exploit this to execute arbitrary script code within the context of the application.
PFSense Project PFSense 2.3.1-RELEASE-p1
System Compromise: Remote attackers can execute arbitrary script code within the context of application.
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