Plone critical security hotfix addressing vulnerabilities in Zope and CMFEditions
This hotfix fixes the following vulnerabilities:
A vulnerability in CMFEditions where KwAsAttributes classes were publishable, exposing sub-objects to anonymous access. This vulnerability is found in CMFEditions 2.0a1 and up. CMFEditions 1.x and before are not vulnerable.
Zope vulnerability CVE 2011-3587. This vulnerability is found in Zope 2.12.x and 2.13.x. Zope 2.11 and before are not vulnerable.
This Plone Hotfix applies the same fix as Products.Zope_Hotfix_CVE_2011_3587 and can co-exist with that patch.
This hotfix is supported on Plone 4.0 - 4.0.9, 4.1 and 4.2. Older versions of Plone (3.3.x and below) are not affected by the vulnerabilities and are not supported by this patch.
The fixes included here will be incorporated into subsequent releases of Plone, so Plone 4.0.10, 4.1.1, 4.2a3 and greater should not require this hotfix.
Installation instructions can be found at http://plone.org/products/plone-hotfix/releases/20111004
Initial release [Plone security team]
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