CVE-2012-5502
Cross-site scripting (XSS) vulnerability in safe_html.py in Plone before 4.2.3 and 4.3 before beta 1 allows remote authenticated users with permissions to edit content to inject arbitrary web script or HTML via unspecified vectors.
Date published : 2014-09-30
https://github.com/plone/Products.CMFPlone/blob/4.2.3/docs/CHANGES.txt