DescriptionA cross site scripting (XSS) vulnerability exists in Check_MK versions 1.4.0x prior to 1.4.0p6, allowing an unauthenticated remote attacker to inject arbitrary HTML or JavaScript via the _username parameter when attempting authentication to, which is returned unencoded with content type text/html.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)
Debian Bugs865497

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
check-mk (PTS)sid1.2.8p26-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[wheezy] - check-mk <ignored> (Minor issue);a=commitdiff;h=c248f0b6ff7b15ced9f07a3df8a80fad656ea5b1

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