A vulnerability, which was classified as critical, was found in Tongda OA 2017 up to 11.9. This affects an unknown part of the file /general/email/inbox/delete_webmail.php. The manipulation of the argument WEBBODY_ID_STR leads to sql injection. The exploit has been disclosed to the public and may be used. Upgrading to version 11.10 is able to address this issue. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-252183. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.