diff --git a/RestControllers/postsController.php b/RestControllers/postsController.php
index 5609d59..15753f7 100644
--- a/RestControllers/postsController.php
+++ b/RestControllers/postsController.php
@@ -327,7 +327,32 @@ class postsController {
 
 	}
 
-	
+	/**
+	 * Change the visibility level of a post
+	 * 
+	 * @url POST /posts/set_visibility_level
+	 */
+	public function set_visibility_level(){
+
+		user_login_required();
+		
+		//Get the post ID
+		$postID = getPostPostID("postID");
+
+		//Get the visibility level
+		$new_visibility = $this->getPostVisibilityLevel("new_level");
+
+		//Check if the user is allowed to change the visibility level of the post
+		if(CS::get()->components->posts->access_level($postID, userID) != Posts::FULL_ACCESS)
+			Rest_fatal_error(401, "You are not allowed to change the visibility level of this post !");
+		
+		//Try to update visibility level
+		if(!CS::get()->components->posts->update_level($postID, $new_visibility))
+			Rest_fatal_error(500, "Couldn't update visibility level !");
+
+		//Success
+		return array("success" => "The visibility level has been updated !");
+	}
 
 
 	/**
diff --git a/classes/components/posts.php b/classes/components/posts.php
index a22b127..427019c 100644
--- a/classes/components/posts.php
+++ b/classes/components/posts.php
@@ -358,6 +358,28 @@ class Posts {
 		return $postID;
 	}
 
+	/**
+	 * Update the visibility level of a post
+	 * 
+	 * @param int $postID The ID of the post to update
+	 * @param int $level The new level for the post
+	 * @return bool TRUE in case of success / FALSE in case of failure
+	 */
+	public function update_level(int $postID, int $level) : bool {
+
+		//Set the new values
+		$new_values = array(
+			"niveau_visibilite" => $level
+		);
+
+		//Set the conditions
+		$conditions = "ID = ?";
+		$condValues = array($postID);
+
+		//Perform the request
+		return CS::get()->db->updateDB($this::TABLE_NAME, $conditions, $new_values, $condValues);
+	}
+
 	/**
 	 * Fetch a single post from the database
 	 *