Zope hotfix: Image updating method
This hotfix addresses a potential security issue that affects Zope versions up to and including Zope 2.2.4.
The issue involves incorrect protection of a data updating method on Image and File objects. Because the method was not correctly protected, it was possible for users with DTML editing priveleges to update the raw data of a File or Image object via DTML though they did not have editing priveleges on the objects themselves.
We highly recommend that any Zope site running versions of Zope up to and including 2.2.4 have this hotfix product installed to mitigate the issue if the site is accessible by untrusted users who have DTML editing privileges.
The hotfix will work for all versions of Zope 2.1.x and higher. A Zope 2.2.5 release later this week will contain the fix for this issue, and you will be able to uninstall the hot fix after upgrading.