diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/wp-includes/meta.php | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/wp-includes/meta.php b/src/wp-includes/meta.php index e1c1f92e48..fe144fcda6 100644 --- a/src/wp-includes/meta.php +++ b/src/wp-includes/meta.php @@ -1159,7 +1159,8 @@ function _get_meta_table( $type ) { * @return bool Whether the meta key is considered protected. */ function is_protected_meta( $meta_key, $meta_type = '' ) { - $protected = ( '_' === $meta_key[0] ); + $sanitized_key = preg_replace( "/[^\x20-\x7E\p{L}]/", '', $meta_key ); + $protected = strlen( $sanitized_key ) > 0 && ( '_' === $sanitized_key[0] ); /** * Filters whether a meta key is considered protected. |