Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.

Monit before version 5.20.0 is vulnerable to a cross site request forgery attack. Successful exploitation will enable an attacker to disable/enable all monitoring for a particular host or disable/enable monitoring for a specific service.