Minor - fix prerequisite encoding BT#5776

main/lp/learnpathItem.class.php

@@ -2175,10 +2175,9 @@ class learnpathItem
                             break;
                         }
                     }
+
                     if (empty($this->prereq_alert) && !$andstatus) {
-                        $this->prereq_alert = get_lang(
-                            'LearnpathPrereqNotCompleted'
-                        );
+                        $this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
                     }
 
                     return $andstatus;
@@ -2728,9 +2727,7 @@ class learnpathItem
                     }
                 }
                 if (!$orstatus && empty($this->prereq_alert)) {
-                    $this->prereq_alert = get_lang(
-                        'LearnpathPrereqNotCompleted'
-                    );
+                    $this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
                 }
 
                 return $orstatus;

main/lp/lp_content.php

@@ -62,7 +62,7 @@ if ($dir) {
                 $src = $learnPath->fixBlockedLinks($src);
                 break;
             }
-            $src = 'blank.php?error=prerequisites&prerequisite_message='.$learnPath->error;
+            $src = 'blank.php?error=prerequisites&prerequisite_message='.Security::remove_XSS($learnPath->error);
             break;
         case 2:
             $learnPath->stop_previous_item();
@@ -72,7 +72,7 @@ if ($dir) {
                 $src = $learnPath->get_link('http', $lpItemId);
                 $learnPath->start_current_item(); // starts time counter manually if asset
             } else {
-                $src = 'blank.php?error=prerequisites&prerequisite_message='.$learnPath->error;
+                $src = 'blank.php?error=prerequisites&prerequisite_message='.Security::remove_XSS($learnPath->error);
             }
             break;
         case 3: