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-rw-r--r--apps/files_versions/lib/Storage.php8
1 files changed, 8 insertions, 0 deletions
diff --git a/apps/files_versions/lib/Storage.php b/apps/files_versions/lib/Storage.php
index b14210af7b1..9a0fe0a7b37 100644
--- a/apps/files_versions/lib/Storage.php
+++ b/apps/files_versions/lib/Storage.php
@@ -320,8 +320,16 @@ class Storage {
// add expected leading slash
$file = '/' . ltrim($file, '/');
list($uid, $filename) = self::getUidAndFilename($file);
+ if ($uid === null || trim($filename, '/') === '') {
+ return false;
+ }
$users_view = new View('/'.$uid);
$files_view = new View('/'. User::getUser().'/files');
+
+ if (!$files_view->isUpdatable($filename)) {
+ return false;
+ }
+
$versionCreated = false;
$fileInfo = $files_view->getFileInfo($file);