Index: wp-includes/taxonomy.php
===================================================================
--- wp-includes/taxonomy.php	(revision 11151)
+++ wp-includes/taxonomy.php	(working copy)
@@ -865,7 +865,7 @@
 			return $wpdb->get_var( $wpdb->prepare( $select . $where, $term ) );
 	}
 
-    $term = trim( $term );
+        $term = trim( slipslashes( $term ));
     
 	if ( '' === $slug = sanitize_title($term) )
 		return 0;