tag_is_valid: add length checking

diff --git a/functions.php b/functions.php
index a1c8315f7ee71ccdea17496e8b6ce41f792ea41d..8f6ae89001deb4b0864e79b459fca82bc013ba5d 100644 (file)
--- a/functions.php
+++ b/functions.php
@@ -4442,6 +4442,7 @@
        function tag_is_valid($tag) {
                if ($tag == '') return false;
                if (preg_match("/^[0-9]*$/", $tag)) return false;
+               if (mb_strlen($tag) > 250) return false;
 
                if (function_exists('iconv')) {
                        $tag = iconv("utf-8", "utf-8", $tag);