The remote host is missing an update to wordpress announced via advisory DSA 1601-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201601-1

Several remote vulnerabilities have been discovered in Wordpress, the weblog manager. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2007-1599 WordPress allows remote attackers to redirect authenticated users to other websites and potentially obtain sensitive information. CVE-2008-0664 The XML-RPC implementation, when registration is enabled, allows remote attackers to edit posts of other blog users. For the stable distribution (etch), these problems have been fixed in version 2.0.10-1etch3. For the unstable distribution (sid), these problems have been fixed in version 2.3.3-1. We recommend that you upgrade your wordpress package.