Ticket #17737: 44652.diff

src/wp-includes/class-wp-query.php

@@ -751 +751 @@
                 $qv['paged']    = absint( $qv['paged'] );
                 $qv['cat']      = preg_replace( '|[^0-9,-]|', '', $qv['cat'] ); // comma separated list of positive or negative integers
                 $qv['author']   = preg_replace( '|[^0-9,-]|', '', $qv['author'] ); // comma separated list of positive or negative integers
-                $qv['pagename'] = trim( $qv['pagename'] );
-                $qv['name']     = trim( $qv['name'] );
-                $qv['title']    = trim( $qv['title'] );
+                $qv['pagename'] = is_string( $qv['pagename'] ) ? trim( $qv['pagename'] )  : '';
+                $qv['name']     = is_string( $qv['name']     ) ? trim( $qv['name'] )     : '';
+                $qv['title']    = is_string( $qv['title']    ) ? trim( $qv['title'] )    : '';
                 if ( '' !== $qv['hour'] ) {
                         $qv['hour'] = absint( $qv['hour'] );
                 }