diff --git a/src/mibew/libs/common.php b/src/mibew/libs/common.php
index c73cb383..af009788 100644
--- a/src/mibew/libs/common.php
+++ b/src/mibew/libs/common.php
@@ -850,6 +850,7 @@ function sanitize_reg_escape($string)
 
 function safe_htmlspecialchars($string)
 {
+	$string = preg_replace('/[\x00-\x08\x10-\x1f]/', '', $string);
 	return htmlspecialchars($string, ENT_QUOTES);
 }