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Database: Hardening for wpdb::prepare()

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Previously if you passed an array of values for placeholders, additional values could be passed as well. Now additional values will be ignored.



git-svn-id: https://develop.svn.wordpress.org/trunk@41470 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
aaroncampbell
2017-09-19 14:47:46 +00:00
parent 64e8c4952a
commit eb012314d0
2 changed files with 50 additions and 1 deletions
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11
src/wp-includes/wp-db.php
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@@ -1236,9 +1236,18 @@ class wpdb {
$args = func_get_args();
array_shift( $args );
// If args were passed as an array (as in vsprintf), move them up
if ( isset( $args[0] ) && is_array($args[0]) )
if ( is_array( $args[0] ) && count( $args ) == 1 ) {
$args = $args[0];
}
foreach ( $args as $arg ) {
if ( ! is_scalar( $arg ) ) {
_doing_it_wrong( 'wpdb::prepare', sprintf( __( 'Unsupported value type (%s).' ), gettype( $arg ) ), '4.8.2' );
}
}
$query = str_replace( "'%s'", '%s', $query ); // in case someone mistakenly already singlequoted it
$query = str_replace( '"%s"', '%s', $query ); // doublequote unquoting
$query = preg_replace( '|(?<!%)%f|' , '%F', $query ); // Force floats to be locale unaware