Solution : https://service.sap.com/sap/support/notes/1678715 (SAP Service marketplace login required)
Key words :
application component crm-btx-act reason, symptom crm e-mail activity application, application component crm-btx-act, prerequisites bsp page bt126h_mail/send_screen, crm e-mail activity application, crm e-mail activity, modify displayed application content, sufficiently encode output parameters, cross-site scripting issue, terms cross-site scripting
Related Notes :
1582870 | ABAP XSS Escaping Support |
1582867 | Security options (XSS) for ESCAPE |