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-rw-r--r--phpBB/includes/startup.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/phpBB/includes/startup.php b/phpBB/includes/startup.php
index 9bbbf4fd4c..008651c236 100644
--- a/phpBB/includes/startup.php
+++ b/phpBB/includes/startup.php
@@ -130,7 +130,7 @@ if (phpbb_has_trailing_path($phpEx))
{
$prefix = 'Status:';
}
- else if (!empty($_SERVER['SERVER_PROTOCOL']))
+ else if (!empty($_SERVER['SERVER_PROTOCOL']) && is_string($_SERVER['SERVER_PROTOCOL']) && preg_match('#^HTTP/[0-9]\.[0-9]$#', $_SERVER['SERVER_PROTOCOL']))
{
$prefix = $_SERVER['SERVER_PROTOCOL'];
}