Privacy: Use a CSPRNG in export filenames for more security.

`rand()` is deterministic and therefore offers much less protection in this context. `wp_generate_password()` is a convenient wrapper around `wp_rand()`, which uses `random_int()` to generate cryptographically-secure psuedorandom numbers.

Props iandunn.
Merges [43045] to the 4.9 branch.
See #43546.
Built from https://develop.svn.wordpress.org/branches/4.9@43094


git-svn-id: http://core.svn.wordpress.org/branches/4.9@42923 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2018-05-02 02:19:25 +00:00
parent c3c9eaf45e
commit 7a7e45a530
2 changed files with 2 additions and 2 deletions

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@ -1905,7 +1905,7 @@ function wp_privacy_generate_personal_data_export_file( $request_id ) {
$stripped_email = str_replace( '@', '-at-', $email_address );
$stripped_email = sanitize_title( $stripped_email ); // slugify the email address
$obscura = md5( rand() );
$obscura = wp_generate_password( 32, false, false );
$file_basename = 'wp-personal-data-file-' . $stripped_email . '-' . $obscura;
$html_report_filename = $file_basename . '.html';
$html_report_pathname = $exports_dir . $html_report_filename;

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@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.9.6-alpha-43093';
$wp_version = '4.9.6-alpha-43094';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.