Ak mate stranky s WP a WP-Super-Cache tak treba updatnut na 1.4.4:

The persistent cross-site scripting bug allows attackers to insert malicious code into WordPress-published pages that use the extension, according to a blog post published Tuesday by security firm Sucuri. Anyone who relies on the plug in should immediately upgrade to version 1.4.4, which has fixes for that bug and several others.
http://arstechnica.com/security/2015/04/as-many-as-1-million-sites-imperiled-by-dangerous-bug-in-wordpress-plugin/