Solution : https://service.sap.com/sap/support/notes/1570543 (SAP Service marketplace login required)
Key words :
area owner sets end-user permissions, sap netweaver portal installed prior, system administrator->transport->xml content, set end-user permissions implicitly, wpc published content root folder, sap netweaver portal version 7, terms web page composer, attached xml file removes, end-user permissions editor, web page composer
Related Notes :
1531307 | WPC for SAP NetWeaver 7.3 - Main Note |
1531306 | Central Note for NetWeaver 7.30 EP / EPC |