Plone upstream has published a pre-announcement about a security flaw, present in Zope v2.12.x and Zope v2.13.x, which could allow execution of arbitrary code by anonymous users. An authenticated attacker could provide a specially-crafted web page, which once visited by an unsuspecting Zope user would lead to arbitrary commands execution with the privileges of the Zope/Plone service.
Note: The vendor announced the final version of the advisory and
the patch to be available at 2011-10-04 15:00 UTC at the
Zope 2.12.x or 2.13.x is not in Fedora or EPEL.
This issue did NOT affect the versions of the zope and plone packages, as present within EPEL-5 repository.
Not vulnerable. This issue did not affect the versions of conga as
shipped with Red Hat Cluster Suite for Red Hat Enterprise Linux 4 and 5.
The CVE identifier of CVE-2011-3587 has been assigned to this issue: