diff --git a/mod/glossary/comment.php b/mod/glossary/comment.php
index c9c7e0592e0..792b42a8512 100644
--- a/mod/glossary/comment.php
+++ b/mod/glossary/comment.php
@@ -118,14 +118,14 @@ function glossary_comment_delete() {
         error('You can\'t delete comments in this glossary!');
     }
 
-    if (data_submitted() and $confirm) {
+    if (data_submitted() and $confirm and confirm_sesskey()) {
         delete_records('glossary_comments','id', $cid);
         add_to_log($course->id, 'glossary', 'delete comment', "comments.php?id=$cm->id&eid=$entry->id", "$comment->id",$cm->id);
         redirect("comments.php?id=$cm->id&eid=$entry->id");
 
     } else {
         $linkyes    = 'comment.php';
-        $optionsyes = array('action'=>'delete', 'cid'=>$cid, 'confirm'=>1);
+        $optionsyes = array('action'=>'delete', 'cid'=>$cid, 'confirm'=>1, 'sesskey'=>sesskey());
         $linkno     = 'comments.php';
         $optionsno  = array('id'=>$cm->id, 'eid'=>$entry->id);
         $strdeletewarning = get_string('areyousuredeletecomment','glossary');
diff --git a/mod/glossary/import.html b/mod/glossary/import.html
index 0f450498c44..326b87cc0f9 100644
--- a/mod/glossary/import.html
+++ b/mod/glossary/import.html
@@ -44,6 +44,7 @@
 </table>
 <div>
 <input type="hidden" name="id" value="<?php p($id) ?>" />
+<input type="hidden" name="sesskey" value="<?php echo sesskey() ?>" />
 <input type="hidden" name="step" value="1" />
 </div>
 </form> 
diff --git a/mod/glossary/import.php b/mod/glossary/import.php
index 56edc02a42a..a4bc1ce17b4 100644
--- a/mod/glossary/import.php
+++ b/mod/glossary/import.php
@@ -61,6 +61,7 @@
         exit;
     }
 
+    require_sesskey();
     $form = data_submitted();
     $file = $_FILES["file"];
 
diff --git a/mod/glossary/rate.php b/mod/glossary/rate.php
index e31cef45840..7d805b2233f 100644
--- a/mod/glossary/rate.php
+++ b/mod/glossary/rate.php
@@ -44,7 +44,7 @@
         $returnurl = $CFG->wwwroot.'/mod/glossary/view.php?id='.$cm->id;
     }
 
-    if ($data = data_submitted()) {    // form submitted
+    if ($data = data_submitted() and confirm_sesskey()) {    // form submitted
 
     /// Calculate scale values
         $scale_values = make_grades_menu($glossary->scale);
diff --git a/mod/glossary/view.php b/mod/glossary/view.php
index 2f150a79ea2..c216488eb4c 100644
--- a/mod/glossary/view.php
+++ b/mod/glossary/view.php
@@ -415,6 +415,7 @@
             echo "<form method=\"post\" action=\"rate.php\">";
             echo "<div>";
             echo "<input type=\"hidden\" name=\"glossaryid\" value=\"$glossary->id\" />";
+            echo "<input type=\"hidden\" name=\"sesskey\" value=\"".sesskey()."\" />";
         }
 
         foreach ($allentries as $entry) {