--- a/base/univention-system-setup/umc/js/setup.js	
+++ a/base/univention-system-setup/umc/js/setup.js	
@@ -500,7 +500,11 @@ define([
 				var confirmMessage = '<p>' + _('The following changes will be applied to the system:') + '</p><ul style="max-height:200px; overflow:auto;">';
 				array.forEach(summaries, function(idesc) {
 					if (idesc.showConfirm) {
-						confirmMessage += '<li>' + entities.encode(idesc.description) + ': ' + entities.encode(idesc.values) + '</li>';
+						var values = idesc.values;
+						if (!idesc.values_html_escaped) {
+							values = entities.encode(values);
+						}
+						confirmMessage += '<li>' + entities.encode(idesc.description) + ': ' + values + '</li>';
 					}
 				});
 				confirmMessage += '</ul><p>' + _('Please confirm to apply these changes to the system. This may take some time.') + '</p>';
--- a/base/univention-system-setup/umc/js/setup/Interfaces.js	
+++ a/base/univention-system-setup/umc/js/setup/Interfaces.js	
@@ -34,10 +34,11 @@ define([
 	"dojo/_base/array",
 	"dojo/store/Memory",
 	"dojo/Stateful",
+	"dojox/html/entities",
 	"umc/tools",
 	"umc/modules/setup/types",
 	"umc/i18n!umc/modules/setup"
-], function(declare, lang, array, Memory, Stateful, tools, types, _) {
+], function(declare, lang, array, Memory, Stateful, entities, tools, types, _) {
 
 	var Device = declare('umc.modules.setup.types.Device', null, {
 		constructor: function(props, interfaces) {
@@ -113,17 +114,17 @@ define([
 			var ip6s = formatIPs(this.ip6);
 
 			if (this.ip4dynamic) {
-				back.push(_('Dynamic (DHCP)'));
+				back.push(entities.encode(_('Dynamic (DHCP)')));
 			}
 			if (this.ip6dynamic) {
-				back.push(_('Autoconfiguration (SLAAC)'));
+				back.push(entities.encode(_('Autoconfiguration (SLAAC)')));
 			}
 
 			if (ip4s.length && !this.ip4dynamic){
-				back.push(_('Static') + ': ' + ip4s.join(', '));
+				back.push(entities.encode(_('Static') + ': ' + ip4s.join(', ')));
 			}
 			if (ip6s.length && !this.ip6dynamic) {
-				back.push(_('Static (IPv6)') + ': ' + ip6s.join(', '));
+				back.push(entities.encode(_('Static (IPv6)') + ': ' + ip6s.join(', ')));
 			}
 
 			return back.join('<br/>');
@@ -133,7 +134,7 @@ define([
 			if (description) {
 				return description;
 			}
-			return _('Unconfigured');
+			return entities.encode(_('Unconfigured'));
 		}
 	});
 	var Ethernet = declare('umc.modules.setup.interfaces.Ethernet', [Device], {});
@@ -164,7 +165,7 @@ define([
 			if (descr) {
 				back.push(descr);
 			}
-			back.push(_('Bond slaves') + ': ' + this.bond_slaves.join(', '));
+			back.push(entities.encode(_('Bond slaves') + ': ' + this.bond_slaves.join(', ')));
 
 			return back.join('<br/>');
 		}
@@ -186,7 +187,7 @@ define([
 			if (descr) {
 				back.push(descr);
 			}
-			back.push(_('Bridge ports') + ': ' + this.bridge_ports.join(', '));
+			back.push(entities.encode(_('Bridge ports') + ': ' + this.bridge_ports.join(', ')));
 
 			return back.join('<br/>');
 		}
--- a/base/univention-system-setup/umc/js/setup/NetworkPage.js	
+++ a/base/univention-system-setup/umc/js/setup/NetworkPage.js	
@@ -33,6 +33,7 @@ define([
 	"dojo/_base/lang",
 	"dojo/_base/array",
 	"dojo/aspect",
+	"dojox/html/entities",
 	"umc/tools",
 	"umc/widgets/Page",
 	"umc/widgets/StandbyMixin",
@@ -44,7 +45,7 @@ define([
 	"umc/modules/setup/Interfaces",
 	"umc/i18n!umc/modules/setup",
 	"umc/modules/setup/InterfaceWizard"
-], function(declare, lang, array, aspect, tools, Page, StandbyMixin, ComboBox, TextBox, MultiInput, Form, InterfaceGrid, Interfaces, _) {
+], function(declare, lang, array, aspect, entities, tools, Page, StandbyMixin, ComboBox, TextBox, MultiInput, Form, InterfaceGrid, Interfaces, _) {
 	return declare("umc.modules.setup.NetworkPage", [ Page, StandbyMixin ], {
 		// summary:
 		//		This class renderes a detail page containing subtabs and form elements
@@ -297,6 +298,7 @@ define([
 			}, {
 				variables: ['interfaces'],
 				description: _('Network interfaces'),
+				values_html_escaped: true,
 				values: this._getInterfaceSummary(vals.interfaces)
 			}, {
 				variables: ['interfaces/primary'],
@@ -337,7 +339,7 @@ define([
 				summary += '<li>' + _('Created:') + '<ul>';
 				array.forEach(created, function(iface) {
 					summary += '<li>';
-					summary += iface.name + ' (' + iface.label + '): ';
+					summary += entities.encode(iface.name + ' (' + iface.label + '): ');
 					summary += iface.getSummary();
 					summary += '</li>';
 				});
@@ -347,7 +349,7 @@ define([
 				summary += '<li>' + _('Modified:') + '<ul>';
 				array.forEach(modified, function(iface) {
 					summary += '<li>';
-					summary += iface.name + ' (' + iface.label + '): ';
+					summary += entities.encode(iface.name + ' (' + iface.label + '): ');
 					summary += iface.getSummary();
 					summary += '</li>';
 				});
@@ -356,9 +358,9 @@ define([
 			if (removed.length) {
 				summary += '<li>' + _('Removed:') + '<ul>';
 				summary += '<li>';
-				summary += array.map(removed, function(iface) {
+				summary += entities.encode(array.map(removed, function(iface) {
 					return iface.name + ' (' + iface.label + ')';
-				}).join(', ');
+				}).join(', '));
 				summary += '</li></ul>';
 			}
 			summary += '</li>';