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-rw-r--r--include/security.php4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/security.php b/include/security.php
index 38cb72263..c9df00f1e 100644
--- a/include/security.php
+++ b/include/security.php
@@ -594,9 +594,11 @@ function check_form_security_token($typename = '', $formname = 'form_security_to
$hash = $_REQUEST[$formname];
$max_livetime = 10800; // 3 hours
+ $min_livetime = 3; // 3 sec
$x = explode('.', $hash);
- if (time() > (IntVal($x[0]) + $max_livetime)) return false;
+ if (time() > (IntVal($x[0]) + $max_livetime) || time() < (IntVal($x[0]) + $min_livetime))
+ return false;
$sec_hash = hash('whirlpool', App::$observer['xchan_guid'] . ((local_channel()) ? App::$channel['channel_prvkey'] : '') . session_id() . $x[0] . $typename);