Permissions

src/freedombone-app-postactiv

     chmod a+w /var/www/$POSTACTIV_DOMAIN_NAME/htdocs/file
     chown -R www-data:www-data /var/www/$POSTACTIV_DOMAIN_NAME/htdocs
     chmod +x /var/www/$POSTACTIV_DOMAIN_NAME/htdocs/scripts/maildaemon.php
-    chmod 1777 /var/www/$POSTACTIV_DOMAIN_NAME/htdocs/extlib/HTMLPurifier/HTMLPurifier/DefinitionCache/Serializer.php
+    chmod 755 /var/www/$POSTACTIV_DOMAIN_NAME/htdocs/extlib/HTMLPurifier/HTMLPurifier/DefinitionCache/Serializer.php
+    chmod -x /var/www/$POSTACTIV_DOMAIN_NAME/htdocs/extlib/HTMLPurifier/HTMLPurifier/DefinitionCache/Serializer.php
 
     function_check postactiv_create_database
     postactiv_create_database