Check for in-range index

sirreal · Dec 19, 2023 · d16c5a0 · d16c5a0
1 parent 82f79f5
commit d16c5a0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/wp-includes/html-api/class-wp-html-tag-processor.php b/src/wp-includes/html-api/class-wp-html-tag-processor.php
@@ -1117,7 +1117,7 @@ private function parse_next_tag() {
 
 			$this->token_starts_at = $at;
 
-			if ( '/' === $this->html[ $at + 1 ] ) {
+			if ( $doc_length > $at + 1 && '/' === $this->html[ $at + 1 ] ) {
 				$this->is_closing_tag = true;
 				++$at;
 			} else {