https://bugzilla.redhat.com/show_bug.cgi?id=1038071 Monitorix, an open source system monitoring tool, was found to be vulnerable to two XSS vulnerabilities, which could allow attackers to execute arbitrary script code in a user's browser in the context of the Web server process, access sensitive data, or hijack a user's session. The issue is that the built-in HTTP server failed to adequately sanitize request strings of malicious JavaScript. So by leveraging this issue, an attacker may be able to inject arbitrary cookies. The same issue could also cause arbitrary HTML and script code to be executed in a user's browser within the security context of the affected site. Input passed via requests to the "handle_request()" function (lib/HTTPServer.pm) is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.