If exploited, this command injection vulnerability could allow remote attackers to execute arbitrary commands. This issue affects: QNAP Systems Inc. Music Station versions prior to 5.1.13; versions prior to 5.2.9; versions prior to 5.3.11.
QNAP have already fixed the issue in the following Music Station:
QTS 4.3.3: Music Station 5.1.13 and later
QTS 4.3.4: Music Station 5.1.13 and later
QTS 4.3.6: Music Station 5.2.9 and later
QTS 4.4.3: Music Station 5.3.11 and later