Multiple cross-site request forgery (CSRF) vulnerabilities in Plone CMS 3.0.5 and 3.0.6 allow remote attackers to (1) add arbitrary accounts via the join_form page and (2) change the privileges of arbitrary groups via the prefs_groups_overview page.

Plone 2.5 through 2.5.4 and 3.0 through 3.0.2 allows remote attackers to execute arbitrary Python code via network data containing pickled objects for the (1) statusmessages or (2) linkintegrity module, which the module unpickles and executes.

Unspecified vulnerability in PlonePAS in Plone 2.5 and 2.5.1, when anonymous member registration is enabled, allows an attacker to "masquerade as a group."

Unspecified vulnerability in the Password Reset Tool before 0.4.1 on Plone 2.5 and 2.5.1 Release Candidate allows attackers to reset the passwords of other users, related to "an erroneous security declaration."

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.