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Don't improperly cast IDs when fetching post, user, or term objects. 

Blindly casting passed IDs to integers can generate false positives
when the ID is cast to `1`.

Props deeptiboddapati.
Fixes #37738.
Built from https://develop.svn.wordpress.org/trunk@38381


git-svn-id: http://core.svn.wordpress.org/trunk@38322 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Boone Gorges 2016-08-26 19:09:27 +00:00
parent 11216c7069
commit 0b81d79c86
4 changed files with 11 additions and 7 deletions
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5
wp-includes/class-wp-comment.php
View File

@ -191,11 +191,12 @@ final class WP_Comment {
public static function get_instance( $id ) {
global $wpdb;
$comment_id = (int) $id;
if ( ! $comment_id ) {
if ( ! is_numeric( $id ) || $id != floor( $id ) || ! $id ) {
return false;
}
$comment_id = (int) $id;
$_comment = wp_cache_get( $comment_id, 'comment' );
if ( ! $_comment ) {

6
wp-includes/class-wp-post.php
View File

@ -210,9 +210,11 @@ final class WP_Post {
public static function get_instance( $post_id ) {
global $wpdb;
$post_id = (int) $post_id;
if ( ! $post_id )
if ( ! is_numeric( $post_id ) || $post_id != floor( $post_id ) || ! $post_id ) {
return false;
}
$post_id = (int) $post_id;
$_post = wp_cache_get( $post_id, 'posts' );

5
wp-includes/class-wp-term.php
View File

@ -125,11 +125,12 @@ final class WP_Term {
public static function get_instance( $term_id, $taxonomy = null ) {
global $wpdb;
$term_id = (int) $term_id;
if ( ! $term_id ) {
if ( ! is_numeric( $term_id ) || $term_id != floor( $term_id ) || ! $term_id ) {
return false;
}
$term_id = (int) $term_id;
$_term = wp_cache_get( $term_id, 'terms' );
// If there isn't a cached version, hit the database.

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.7-alpha-38380';
$wp_version = '4.7-alpha-38381';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.