diff --git a/routers/api/v1/user/user.go b/routers/api/v1/user/user.go
index 0ab6eaf44..35d7da738 100644
--- a/routers/api/v1/user/user.go
+++ b/routers/api/v1/user/user.go
@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"github.com/Unknwon/com"
+	"github.com/gogits/gogs/pkg/markup"
 
 	api "code.gitea.io/sdk/gitea"
 
@@ -50,7 +51,7 @@ func Search(ctx *context.APIContext) {
 			ID:        users[i].ID,
 			UserName:  users[i].Name,
 			AvatarURL: users[i].AvatarLink(),
-			FullName:  users[i].FullName,
+			FullName:  markup.Sanitize(users[i].FullName),
 		}
 		if ctx.IsSigned {
 			results[i].Email = users[i].Email
diff --git a/templates/repo/editor/commit_form.tmpl b/templates/repo/editor/commit_form.tmpl
index 43021ca59..7b7e2cf46 100644
--- a/templates/repo/editor/commit_form.tmpl
+++ b/templates/repo/editor/commit_form.tmpl
@@ -14,7 +14,8 @@
 					<input type="radio" class="js-quick-pull-choice-option" name="commit_choice" value="direct" {{if eq .commit_choice "direct"}}checked{{end}}>
 					<label>
 						<i class="octicon octicon-git-commit" height="16" width="14"></i>
-						{{.i18n.Tr "repo.editor.commit_directly_to_this_branch" .BranchName | Safe}}
+						{{$branchName := .BranchName | Str2html}}
+						{{.i18n.Tr "repo.editor.commit_directly_to_this_branch" $branchName | Safe}}
 					</label>
 				</div>
 			</div>
diff --git a/templates/repo/issue/view_title.tmpl b/templates/repo/issue/view_title.tmpl
index 3f3b62e65..4650ba4c8 100644
--- a/templates/repo/issue/view_title.tmpl
+++ b/templates/repo/issue/view_title.tmpl
@@ -28,7 +28,7 @@
 		{{if .Issue.PullRequest.HasMerged}}
 			{{ $mergedStr:= TimeSince .Issue.PullRequest.Merged $.Lang }}
 			<a {{if gt .Issue.PullRequest.Merger.ID 0}}href="{{.Issue.PullRequest.Merger.HomeLink}}"{{end}}>{{.Issue.PullRequest.Merger.Name}}</a>
-			<span class="pull-desc">{{$.i18n.Tr "repo.pulls.merged_title_desc" .NumCommits .HeadTarget .BaseTarget $mergedStr | Safe}}</span>
+			<span class="pull-desc">{{$.i18n.Tr "repo.pulls.merged_title_desc" .NumCommits .HeadTarget .BaseTarget $mergedStr | Str2html}}</span>
 		{{else}}
 			<a {{if gt .Issue.Poster.ID 0}}href="{{.Issue.Poster.HomeLink}}"{{end}}>{{.Issue.Poster.Name}}</a>
 			<span class="pull-desc">{{$.i18n.Tr "repo.pulls.title_desc" .NumCommits .HeadTarget .BaseTarget | Str2html}}</span>