diff --git a/Changelog.md b/Changelog.md
index cd218f19b..b85998e2d 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -60,6 +60,7 @@ The default for including jQuery from a CDN has changed. If you want to continue
 * Set mention notification as read when viewing post [#5006](https://github.com/diaspora/diaspora/pull/5006)
 * Set sharing notification as read when viewing profile [#5009](https://github.com/diaspora/diaspora/pull/5009)
 * Ensure a consistent border on text input elements [#5069](https://github.com/diaspora/diaspora/pull/5069)
+* Escape person name in contacts json returned by Conversations#new
 
 ## Features
 * Port admin pages to bootstrap, polish user search results, allow accounts to be closed from the backend [#5046](https://github.com/diaspora/diaspora/pull/5046)
diff --git a/app/controllers/conversations_controller.rb b/app/controllers/conversations_controller.rb
index 58638651d..1ebc4d81c 100644
--- a/app/controllers/conversations_controller.rb
+++ b/app/controllers/conversations_controller.rb
@@ -87,7 +87,7 @@ class ConversationsController < ApplicationController
         current_user.contacts.where(:sharing => true).joins(:person => :profile).
           select("contacts.id, profiles.first_name, profiles.last_name, people.diaspora_handle").to_sql
       }
-    ).map{|r| {:value => r[0], :name => Person.name_from_attrs(r[1], r[2], r[3]).gsub(/(")/, "'")} }
+    ).map{|r| {:value => r[0], :name => ERB::Util.h(Person.name_from_attrs(r[1], r[2], r[3]).gsub(/(")/, "'"))} }
 
     @contact_ids = ""
 
diff --git a/spec/controllers/conversations_controller_spec.rb b/spec/controllers/conversations_controller_spec.rb
index bfc5ebf73..a21aa6d02 100644
--- a/spec/controllers/conversations_controller_spec.rb
+++ b/spec/controllers/conversations_controller_spec.rb
@@ -10,15 +10,13 @@ describe ConversationsController, :type => :controller do
   end
 
   describe '#new' do
-    before do
-      get :new
-    end
-
     it 'succeeds' do
+      get :new
       expect(response).to be_success
     end
 
     it "assigns a json list of contacts that are sharing with the person" do
+      get :new
       expect(assigns(:contacts_json)).to include(alice.contacts.where(:sharing => true).first.person.name)
       alice.contacts << Contact.new(:person_id => eve.person.id, :user_id => alice.id, :sharing => false, :receiving => true)
       expect(assigns(:contacts_json)).not_to include(alice.contacts.where(:sharing => false).first.person.name)
@@ -41,6 +39,16 @@ describe ConversationsController, :type => :controller do
         expect(response.body).not_to include xss
       end
     end
+
+    it "does not allow XSS via the profile name" do
+      xss = "<script>alert(0);</script>"
+      contact = alice.contacts.first
+      contact.person.profile.update_attribute(:first_name, xss)
+      get :new
+      json = JSON.parse(assigns(:contacts_json)).first
+      expect(json['value']).to eq(contact.id.to_s)
+      expect(json['name']).to_not include(xss)
+    end
   end
 
   describe '#index' do