CVE-2017-1000483: Undefined Security Weakness

Accessing private content via str.format in through-the-web templates and scripts in Plone 2.5-5.1rc1. This improves an earlier hotfix. Since the format method was introduced in Python 2.6, this part of the hotfix is only relevant for Plone 4 and 5...

Sandbox Escape

plone is vulnerable to sandbox escape. It is possible to access private content via str.format in through-the-web templates and scripts. str.format, Python's new-style string format introduced in 2.6, causes the security issue on untrusted user input. If an attacker can control the string format...