The remote host is missing an update to typo3-src announced via advisory DSA 2574-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202574-1

Several vulnerabilities were discovered in TYPO3, a content management system. This update addresses cross-site scripting, SQL injection, and information disclosure vulnerabilities and corresponds to TYPO3-CORE-SA-2012-005. For the stable distribution (squeeze), this problem has been fixed in version 4.3.9+dfsg1-1+squeeze7. For the unstable distribution (sid), this problem has been fixed in version 4.5.19+dfsg1-4. We recommend that you upgrade your typo3-src packages.