The remote host is missing an update to moin announced via advisory USN-774-1.

The problem can be corrected by upgrading your system to the following package versions: Ubuntu 8.10: python-moinmoin 1.7.1-1ubuntu1.2 Ubuntu 9.04: python-moinmoin 1.8.2-2ubuntu2.1 In general, a standard system upgrade is sufficient to effect the necessary changes. https://secure1.securityspace.com/smysecure/catid.html?in=USN-774-1

It was discovered that MoinMoin did not properly sanitize its input when attaching files, resulting in cross-site scripting (XSS) vulnerabilities. With cross-site scripting vulnerabilities, if a user were tricked into viewing server output during a crafted server request, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain.