Plone 2.0.5, 2.1.2, and 2.5-beta1 does not restrict access to the (1) changeMemberPortrait, (2) deletePersonalPortrait, and (3) testCurrentPassword methods, which allows remote attackers to modify portraits.
https://svn.plone.org/svn/plone/PloneHotfix20060410/trunk/README.txt
https://exchange.xforce.ibmcloud.com/vulnerabilities/25781
http://www.vupen.com/english/advisories/2006/1340
http://www.securityfocus.com/bid/17484
http://www.debian.org/security/2006/dsa-1032
http://secunia.com/advisories/19640