diff --git a/src/parsers/class-wxr-parser-regex.php b/src/parsers/class-wxr-parser-regex.php
index b15612ae..9bafa3c3 100644
--- a/src/parsers/class-wxr-parser-regex.php
+++ b/src/parsers/class-wxr-parser-regex.php
@@ -125,10 +125,10 @@ public function get_tag( $text, $tag ) {
 			if ( substr( $return[1], 0, 9 ) == '<![CDATA[' ) {
 				if ( strpos( $return[1], ']]]]><![CDATA[>' ) !== false ) {
 					preg_match_all( '|<!\[CDATA\[(.*?)\]\]>|s', $return[1], $matches );
-					$return = '';
-					if ( isset( $matches[1] ) ) {
+						$return = '';
+					if ( isset( $matches[1] ) && is_array( $matches[1] ) ) {
 						foreach ( $matches[1] as $match ) {
-							$return .= $match;
+									$return .= $match;
 						}
 					}
 				} else {
@@ -322,9 +322,9 @@ public function process_post( $post ) {
 	}
 
 	public function _normalize_tag( $matches ) {
-		return '<' . strtolower( $matches[1] );
+		$tag = $matches[1] ?? '';
+		return '<' . strtolower( $tag );
 	}
-
 	public function fopen( $filename, $mode = 'r' ) {
 		if ( $this->has_gzip ) {
 			return gzopen( $filename, $mode );