Zope management interface vulnerable to stored cross site scripting via the title property

Impact

The title property, available on most Zope objects, can be used to store script code that is executed while viewing the affected object in the Zope Management Interface (ZMI) because the title property is displayed unquoted in the breadcrumbs element. All versions of Zope 4 and Zope 5 are affected.

Patches

Patches will be released with Zope versions 4.8.11 and 5.8.6.

Workarounds

Make sure only Manager users can edit and view Zope objects in the Zope Management Interface. This is the default.