The security issue for wiki site

[0xddaa]

Hi friends,

Please forgive my offense but I found your wiki site used the old version MediaWiki.

The version 1.26.2 exists a serious security issue and anyone can execute arbitrary code after registered.

I created a proof of concept under this url:

http://wiki.octave.org/wiki/images/foo.php

You should upgrade MediaWiki to 1.27.3, 1.28.2, or later before disaster occurred.

Sincerely,

ddaa