Unescaped parameter $primary_key_column used in $wpdb->get_results("SELECT `$primary_key_column`, `{$column}` FROM `{$table}` WHERE `{$column}` LIKE 'a:%' OR `{$column}` LIKE 'O:%' OR `{$column}` LIKE 's:%';")\n$primary_key_column assigned unsafely at line 115:\n $primary_key_column = $pk[0]->Column_name\n$pk[0]->Column_name used without escaping.
Unescaped parameter $primary_key_column used in $wpdb->query($wpdb->prepare( "UPDATE `{$table}` SET `{$column}`=%s WHERE `{$primary_key_column}` = %s", $clean, $row->{$primary_key_column} ))\n$primary_key_column assigned unsafely at line 115:\n $primary_key_column = $pk[0]->Column_name\n$pk[0]->Column_name used without escaping.
Unescaped parameter $query used in $wpdb->get_col($query)\n$query assigned unsafely at line 149:\n $query .= ' AND SUBSTRING(TABLE_NAME,1,4) NOT IN (' . substr( $not_like, 0, - 1 ) . ')'
Unescaped parameter $query used in $wpdb->get_var($wpdb->prepare( $query, [ $old_url, $old_url ] ))\n$query assigned unsafely at line 265:\n $query = "SELECT SUM( ROUND( ( LENGTH( `{$column}` ) - LENGTH( REPLACE( `{$column}`, %s, '' ) ) ) / LENGTH( %s ) ) ) from `{$table}`"\n$column used without escaping.