It was discovered that the Zope web application server allows read access to arbitrary pages on the server, if a user has the privilege to edit "restructured text" pages.
For the stable distribution (sarge) this problem has been fixed in version 2.7.5-2sarge2.
The unstable distribution (sid) does no longer contain Zope 2.7 packages.
We recommend that you upgrade your zope2.7 package.
MD5 checksums of the listed files are available in the original advisory.