Multiple cross-site scripting (XSS) vulnerabilities in (1) spamProtect.py, (2) pts.py, and (3) request.py in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
https://bugzilla.redhat.com/show_bug.cgi?id=978451
http://seclists.org/oss-sec/2013/q3/261
http://plone.org/products/plone/security/advisories/20130618-announcement