Fix off-by-one error in random_alphanum()

This could result in too short strings

Signed-off-by: Florian Pritz <bluewind@xinu.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/application/helpers/filebin_helper.php b/application/helpers/filebin_helper.php
index 53fc4f280..bed696c8c 100644
--- a/application/helpers/filebin_helper.php
+++ b/application/helpers/filebin_helper.php
@@ -218,7 +218,7 @@ function random_alphanum($min_length, $max_length = null)
 
 	for($i = 0; $i < $max_length; $i++) {
 		if (strlen($random) == $length) break;
-		$random .= substr($char_list, mt_rand(0, strlen($char_list)), 1);
+		$random .= substr($char_list, mt_rand(0, strlen($char_list) - 1), 1);
 	}
 	return $random;
 }