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-rw-r--r--feed.php2
1 files changed, 2 insertions, 0 deletions
diff --git a/feed.php b/feed.php
index bbd4956f5..4da7fb4fe 100644
--- a/feed.php
+++ b/feed.php
@@ -63,6 +63,8 @@ function ts_to_iso8601($ts)
// | initialization |
// +-----------------------------------------------------------------------+
+check_input_parameter('feed', $_GET['feed'], false, '/^[0-9a-z]{50}$/i');
+
$feed_id= isset($_GET['feed']) ? $_GET['feed'] : '';
$image_only=isset($_GET['image_only']);