diff --git a/templates/repo/issue/list.tmpl b/templates/repo/issue/list.tmpl
index bb7327ebf1..1b060cb231 100644
--- a/templates/repo/issue/list.tmpl
+++ b/templates/repo/issue/list.tmpl
@@ -34,7 +34,7 @@
 				<div class="menu">
 					<a class="item" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&milestone={{$.MilestoneID}}&assignee={{$.AssigneeID}}">{{.i18n.Tr "repo.issues.filter_label_no_select"}}</a>
 					{{range .Labels}}
-						<a class="item" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{.ID}}&milestone={{$.MilestoneID}}&assignee={{$.AssigneeID}}"><span class="octicon {{if eq $.SelectLabels .ID}}octicon-check{{end}}"></span><span class="label color" style="background-color: {{.Color}}"></span> {{.Name}}</a>
+						<a class="item" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{.ID}}&milestone={{$.MilestoneID}}&assignee={{$.AssigneeID}}"><span class="octicon {{if eq $.SelectLabels .ID}}octicon-check{{end}}"></span><span class="label color" style="background-color: {{.Color}}"></span> {{.Name | Sanitize}}</a>
 					{{end}}
 				</div>
 			</div>
@@ -48,7 +48,7 @@
 				<div class="menu">
 					<a class="item" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{.SelectLabels}}&assignee={{$.AssigneeID}}">{{.i18n.Tr "repo.issues.filter_milestone_no_select"}}</a>
 					{{range .Milestones}}
-						<a class="{{if eq $.MilestoneID .ID}}active selected{{end}} item" href="{{$.Link}}?type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{$.SelectLabels}}&milestone={{.ID}}&assignee={{$.AssigneeID}}">{{.Name}}</a>
+						<a class="{{if eq $.MilestoneID .ID}}active selected{{end}} item" href="{{$.Link}}?type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{$.SelectLabels}}&milestone={{.ID}}&assignee={{$.AssigneeID}}">{{.Name | Sanitize}}</a>
 					{{end}}
 				</div>
 			</div>
@@ -106,7 +106,7 @@
 					<a class="title has-emoji" href="{{$.Link}}/{{.Index}}">{{.Title}}</a>
 
 					{{range .Labels}}
-						<a class="ui label" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&state={{$.State}}&labels={{.ID}}&milestone={{$.MilestoneID}}&assignee={{$.AssigneeID}}" style="color: {{.ForegroundColor}}; background-color: {{.Color}}">{{.Name}}</a>
+						<a class="ui label" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&state={{$.State}}&labels={{.ID}}&milestone={{$.MilestoneID}}&assignee={{$.AssigneeID}}" style="color: {{.ForegroundColor}}; background-color: {{.Color}}">{{.Name | Sanitize}}</a>
 					{{end}}
 
 					{{if .NumComments}}
@@ -117,7 +117,7 @@
 						{{$.i18n.Tr "repo.issues.opened_by" $timeStr .Poster.HomeLink .Poster.Name | Safe}}
 						{{if .Milestone}}
 							<a class="milestone" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&state={{$.State}}&labels={{$.SelectLabels}}&milestone={{.Milestone.ID}}&assignee={{$.AssigneeID}}">
-								<span class="octicon octicon-milestone"></span> {{.Milestone.Name}}
+								<span class="octicon octicon-milestone"></span> {{.Milestone.Name | Sanitize}}
 							</a>
 						{{end}}
 						{{if .Assignee}}
diff --git a/templates/repo/issue/milestones.tmpl b/templates/repo/issue/milestones.tmpl
index 3703301e19..1cce9169d7 100644
--- a/templates/repo/issue/milestones.tmpl
+++ b/templates/repo/issue/milestones.tmpl
@@ -43,7 +43,7 @@
 		<div class="milestone list">
 			{{range .Milestones}}
 				<li class="item">
-					<i class="octicon octicon-milestone"></i> <a href="{{$.RepoLink}}/issues?state={{$.State}}&milestone={{.ID}}">{{.Name}}</a>
+					<i class="octicon octicon-milestone"></i> <a href="{{$.RepoLink}}/issues?state={{$.State}}&milestone={{.ID}}">{{.Name | Sanitize}}</a>
 					<div class="ui right green progress" data-percent="{{.Completeness}}">
 						<div class="bar" {{if not .Completeness}}style="background-color: transparent"{{end}}>
 							<div class="progress"></div>
diff --git a/templates/repo/issue/view_content.tmpl b/templates/repo/issue/view_content.tmpl
index 381c80cdaf..42e9f01c0b 100644
--- a/templates/repo/issue/view_content.tmpl
+++ b/templates/repo/issue/view_content.tmpl
@@ -322,7 +322,7 @@
 				<span class="no-select item {{if .HasSelectedLabel}}hide{{end}}">{{.i18n.Tr "repo.issues.new.no_label"}}</span>
 				{{range .Labels}}
 					<div class="item">
-						<a class="ui label {{if not .IsChecked}}hide{{end}}" id="label_{{.ID}}" href="{{$.RepoLink}}/issues?labels={{.ID}}" style="color: {{.ForegroundColor}}; background-color: {{.Color}}">{{.Name}}</a>
+						<a class="ui label {{if not .IsChecked}}hide{{end}}" id="label_{{.ID}}" href="{{$.RepoLink}}/issues?labels={{.ID}}" style="color: {{.ForegroundColor}}; background-color: {{.Color}}">{{.Name | Sanitize}}</a>
 					</div>
 
 				{{end}}
@@ -344,7 +344,7 @@
 							{{.i18n.Tr "repo.issues.new.open_milestone"}}
 						</div>
 						{{range .OpenMilestones}}
-							<div class="item" data-id="{{.ID}}" data-href="{{$.RepoLink}}/issues?milestone={{.ID}}"> {{.Name}}</div>
+							<div class="item" data-id="{{.ID}}" data-href="{{$.RepoLink}}/issues?milestone={{.ID}}"> {{.Name | Sanitize}}</div>
 						{{end}}
 					{{end}}
 					{{if .ClosedMilestones}}
@@ -354,7 +354,7 @@
 							{{.i18n.Tr "repo.issues.new.closed_milestone"}}
 						</div>
 						{{range .ClosedMilestones}}
-							<a class="item" data-id="{{.ID}}" data-href="{{$.RepoLink}}/issues?milestone={{.ID}}"> {{.Name}}</a>
+							<a class="item" data-id="{{.ID}}" data-href="{{$.RepoLink}}/issues?milestone={{.ID}}"> {{.Name | Sanitize}}</a>
 						{{end}}
 					{{end}}
 				</div>
@@ -363,7 +363,7 @@
 				<span class="no-select item {{if .Issue.Milestone}}hide{{end}}">{{.i18n.Tr "repo.issues.new.no_milestone"}}</span>
 				<div class="selected">
 					{{if .Issue.Milestone}}
-						<a class="item" href="{{.RepoLink}}/issues?milestone={{.Issue.Milestone.ID}}"> {{.Issue.Milestone.Name}}</a>
+						<a class="item" href="{{.RepoLink}}/issues?milestone={{.Issue.Milestone.ID}}"> {{.Issue.Milestone.Name | Sanitize}}</a>
 					{{end}}
 				</div>
 			</div>