diff --git a/core/page.php b/core/page.php
index 2a6f9966..baa9f273 100644
--- a/core/page.php
+++ b/core/page.php
@@ -365,7 +365,7 @@ class Page
                 $start = 0;               // Start byte
                 $end = $size - 1;       // End byte
 
-                header("Content-Length: " . strlen($size));
+                header("Content-Length: " . $size);
                 header('Accept-Ranges: bytes');
 
                 if (isset($_SERVER['HTTP_RANGE'])) {
diff --git a/ext/report_image/main.php b/ext/report_image/main.php
index 367a0417..4d23d679 100644
--- a/ext/report_image/main.php
+++ b/ext/report_image/main.php
@@ -59,7 +59,7 @@ class ReportImage extends Extension
             } elseif ($event->get_arg(0) == "remove") {
                 if (!empty($_POST['id'])) {
                     if ($user->can(Permissions::VIEW_IMAGE_REPORT)) {
-                        send_event(new RemoveReportedImageEvent($_POST['id']));
+                        send_event(new RemoveReportedImageEvent(int_escape($_POST['id'])));
                         $page->set_mode(PageMode::REDIRECT);
                         $page->set_redirect(make_link("image_report/list"));
                     }