Set minimal permissions to temp files (#148899)

plugins/filesystem_attachments/filesystem_attachments.php

@@ -60,6 +60,7 @@ class filesystem_attachments extends rcube_plugin
             $args['id'] = $this->file_id();
             $args['path'] = $tmpfname;
             $args['status'] = true;
+            @chmod($tmpfname, 0600);  // set correct permissions (#148899)
 
             // Note the file for later cleanup
             $_SESSION['plugins']['filesystem_attachments'][$group][] = $tmpfname;

program/lib/Roundcube/rcube_image.php

@@ -124,6 +124,7 @@ class rcube_image
             }
 
             if ($result === '') {
+                @chmod($filename, 0600);
                 return $type;
             }
         }
@@ -183,6 +184,7 @@ class rcube_image
             }
 
             if ($result) {
+                @chmod($filename, 0600);
                 return $type;
             }
         }
@@ -223,6 +225,7 @@ class rcube_image
             $result = rcube::exec($convert . ' 2>&1 -colorspace RGB -quality 75 {in} {type}:{out}', $p);
 
             if ($result === '') {
+                @chmod($filename, 0600);
                 return true;
             }
         }
@@ -256,6 +259,7 @@ class rcube_image
             }
 
             if ($result) {
+                @chmod($filename, 0600);
                 return true;
             }
         }