diff --git a/PeerAtCodeFramework.jar b/PeerAtCodeFramework.jar
index db10b4f..b673db4 100644
Binary files a/PeerAtCodeFramework.jar and b/PeerAtCodeFramework.jar differ
diff --git a/src/dev/peerat/backend/routes/groups/GroupCreate.java b/src/dev/peerat/backend/routes/groups/GroupCreate.java
index b41b60a..c8ddbc4 100644
--- a/src/dev/peerat/backend/routes/groups/GroupCreate.java
+++ b/src/dev/peerat/backend/routes/groups/GroupCreate.java
@@ -10,14 +10,16 @@ import dev.peerat.backend.model.Chapter;
 import dev.peerat.backend.model.Group;
 import dev.peerat.backend.model.PeerAtUser;
 import dev.peerat.backend.repository.DatabaseRepository;
+import dev.peerat.backend.utils.FormResponse;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
 import dev.peerat.framework.Locker;
 import dev.peerat.framework.Response;
 import dev.peerat.framework.Route;
+import dev.peerat.framework.utils.json.JsonMap;
 
-public class GroupCreate implements Response {
+public class GroupCreate extends FormResponse {
 
 	private Locker<Group> locker;
 	private DatabaseRepository repo;
@@ -27,6 +29,8 @@ public class GroupCreate implements Response {
 		this.repo = repo;
 		this.locker = locker;
 		this.groupDelay = groupDelay;
+		
+		validator("name", "[a-zA-Z0-9&|!?{}\\[\\]%/*\\-+=:;,_#@ ]{3,100}");
 	}
 
 	@RouteDoc(path = "/groupCreate", responseCode = 200, responseDescription = "Le groupe a été créé")
@@ -35,7 +39,12 @@ public class GroupCreate implements Response {
 	
 	@Route(path = "^\\/groupCreate$", type = POST, needLogin = true)
 	public void exec(Matcher matcher, Context context, HttpReader reader, HttpWriter writer) throws Exception{
-		Group newGroup = new Group(reader.readJson());
+		JsonMap json = json(reader);
+		if(!areValids("name")){
+			context.response(403);
+			return;
+		}
+		Group newGroup = new Group(json);
 		PeerAtUser user = context.getUser();
 		
 		if (this.repo.getPlayerGroup(user.getId(), newGroup.getLinkToChapter()) == null) {
diff --git a/src/dev/peerat/backend/routes/users/MailConfirmation.java b/src/dev/peerat/backend/routes/users/MailConfirmation.java
index 8043874..f7185bd 100644
--- a/src/dev/peerat/backend/routes/users/MailConfirmation.java
+++ b/src/dev/peerat/backend/routes/users/MailConfirmation.java
@@ -66,6 +66,9 @@ public class MailConfirmation extends FormResponse {
 		generator.initialize(4096);
 		encoder = Base64.getEncoder();
 		
+		validator("pseudo", "[a-zA-Z0-9&|!?{}\\[\\]%/*\\-+=:;,_#@ ]{3,100}");
+		validator("firstname", "^(?>[a-zA-Z]+ ?)+$");
+		validator("lastname", "^(?>[a-zA-Z]+ ?)+$");
 	}
 
 	@RouteDoc(path = "/confirmation", responseCode = 200, responseDescription = "L'utilisateur est inscrit")
diff --git a/src/dev/peerat/backend/utils/FormResponse.java b/src/dev/peerat/backend/utils/FormResponse.java
index eeb8689..d5dd238 100644
--- a/src/dev/peerat/backend/utils/FormResponse.java
+++ b/src/dev/peerat/backend/utils/FormResponse.java
@@ -19,7 +19,7 @@ public abstract class FormResponse implements Response{
 	}
 	
 	public void validator(String key, String regex){
-		this.checker.put(key, Pattern.compile(regex));
+		this.checker.put(key, Pattern.compile(regex, Pattern.CASE_INSENSITIVE));
 	}
 	
 	public <T extends Json> T json(HttpReader reader) throws Exception{