The zStore Manager Basic plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the zstore_clear_cache() function in all versions up to, and including, 3.311. This makes it possible for authenticated attackers, with Subscriber-level access and above, to clear the plugin's cache.
https://plugins.trac.wordpress.org/browser/zstore-manager-basic/trunk/zstore-manager.php#L441