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Date: Tue, 17 Jan 2017 09:06:10 -0600
From: Nathan Van Gheem <>
Subject: CVE Request: Plone Sandbox escape vulnerability

Dear oss-security List,

Please provide a CVE for the following issue:

Sandbox escape
    Accessing private content via `str.format` in through-the-web templates
and scripts. See this blog post by Armin Ronacher ( for the
general idea. Since the `format` method was introduced in Python 2.6, this
part of the hotfix is only relevant for Plone 4 and 5, not Plone 3.
    Credit: Plone security team, Armin Ronacher

Versions Affected:
4.3.11 and any earlier 4.x version, 5.0.6 and any earlier 5.x version

Code fixes:

Recommended action:
Install the

Thank you,
Nathan Van Gheem
Plone Security Team

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