yii -- Remote arbitrary PHP code execution

Yii PHP Framework developers report:

We are releasing Yii 1.1.15 to fix a security issue
found in 1.1.14. We urge all 1.1.14 users to upgrade their
Yii to this latest release. Note that the issue only
affects 1.1.14. All previous releases are not affected.
Upgrading to this release from 1.1.14 is very safe and
will not break your existing code.
The vulnerability is in the CDetailView widget. When
a Yii application uses this widget and configures the
“value” property of a CDetailView attribute using end
user inputs, it may allow attackers to potentially execute
arbitrary PHP scripts on the server. We are not showing
how to exploit it here to allow users to upgrade before
details about the exploit become publicly known. To our
knowledge the details of this issue are only known to
core team members.