USN-977-1

A security issue affects the following Ubuntu releases:

Ubuntu 6.06 LTS
Ubuntu 8.04 LTS
Ubuntu 9.04
Ubuntu 9.10
Ubuntu 10.04 LTS

This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.

The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 6.06 LTS:
python2.4-moinmoin 1.5.2-1ubuntu2.7

Ubuntu 8.04 LTS:
python-moinmoin 1.5.8-5.1ubuntu2.5

Ubuntu 9.04:
python-moinmoin 1.8.2-2ubuntu2.5

Ubuntu 9.10:
python-moinmoin 1.8.4-1ubuntu1.3

Ubuntu 10.04 LTS:
python-moinmoin 1.9.2-2ubuntu3.1

In general, a standard system update will make all the necessary changes.

Details follow:

It was discovered that MoinMoin did not properly sanitize its input,
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.