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Improper Certificate Validation in Checkmk Exchange plugin BGP Monitoring allows attackers in MitM position to intercept traffic.
A flaw was reported [1] in smokeping 2.6 (and most likely earlier versions) which malicious remote users could abuse to conduct cross-site scripting attacks.. Input passed to the "displaymode" parameter in the smokeping CGI script is not properly sanitized before being returned to the user, which can be used to execute arbitrary HTML and script code in a user's browser session in the context of an affected site.
Smokeping 2.6.7 has been released to correct this flaw.
[1] http://holisticinfosec.org/content/view/188/45/