QNAP QTS Photo Station External Reference is vulnerable to local file inclusion via an externally controlled reference to a resource vulnerability. If exploited, this could allow an attacker to modify system files. The vulnerability is fixed in the following versions: QTS 5.0.1: Photo Station 6.1.2 and later QTS 5.0.0/4.5.x: Photo Station 6.0.22 and later QTS 4.3.6: Photo Station 5.7.18 and later QTS 4.3.3: Photo Station 5.4.15 and later QTS 4.2.6:Photo Station 5.2.14 and later.