Gary Kirk wrote:
All users of 1.9.x should upgrade.
Is it crucial I do so asap?
Brion Vibber wrote: "leading to an HTML injection vulnerability." This means YES: Apply before some vandal a) learns how to do it and b) find your unprotected wiki.
Download:
http://download.wikimedia.org/mediawiki/1.9/mediawiki-1.9.2.patch
What's this?
A [[Patch (computing)]] which can be applied with [[patch (Unix)]] to upgrade from 1.9.1 to 1.9.2