New Zope packages are available which fix a security flaw with ZClass.
This package includes a "hotfix" product which addresses a security problem with ZClasses, as descripbed in the Hotfix_2001-05-01 README.txt file: "The issue is related to ZClasses in that any user can visit a ZClass declaration and change the ZClass permission mappings for methods and other objects defined within the ZClass, possibly allowing for unauthorized access within the Zope instance."
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