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Editor: Fix Path Traversal issue on Windows in Template-Part Block. 

Merges [58470] to the 5.1 branch.
Props xknown, jorbin.



Built from https://develop.svn.wordpress.org/branches/5.1@58491


git-svn-id: http://core.svn.wordpress.org/branches/5.1@57940 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
audrasjb 2024-06-24 15:41:46 +00:00
parent 1d0534adf3
commit 96cdea312b
1 changed files with 3 additions and 0 deletions
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3
wp-includes/functions.php
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@ -4790,6 +4790,9 @@ function iis7_supports_permalinks() {
* @return int 0 means nothing is wrong, greater than 0 means something was wrong. * @return int 0 means nothing is wrong, greater than 0 means something was wrong.
*/ */
function validate_file( $file, $allowed_files = array() ) { function validate_file( $file, $allowed_files = array() ) {
// Normalize path for Windows servers
$file = wp_normalize_path( $file );
// `../` on its own is not allowed: // `../` on its own is not allowed:
if ( '../' === $file ) { if ( '../' === $file ) {
return 1; return 1;