Cross-site scripting (XSS) vulnerability in share/pnp/application/views/kohana_error_page.php in PNP4Nagios before 0.6.22 allows remote attackers to inject arbitrary web script or HTML via a parameter that is not properly handled in an error message.
https://bugs.op5.com/view.php?id=8761
http://www.securityfocus.com/bid/68350
http://www.op5.com/blog/news/op5-monitor-6-3-1-release-notes
http://secunia.com/advisories/59603
http://secunia.com/advisories/59535