Updated mediawiki packages fix security vulnerabilies:

In MediaWiki before 1.23.7, a missing CSRF check could allow reflected
XSS on wikis that allow raw HTML (CVE-2014-9276).

MediaWiki’s mangling, in MediaWiki before 1.23.7, could
allow an article editor to inject code into API consumers that
blindly unserialize PHP representations of the page from the API
(CVE-2014-9277).

This update provides MediaWiki 1.23.7, which fixes these security
issues and other bugs.