The Download Manager WordPress plugin before 3.2.71 does not adequately validate passwords for password-protected files. Upon validation, a master key is generated and exposed to the user, which may be used to download any password-protected file on the server, allowing a user to download any file with the knowledge of any one file's password.

The Download Manager WordPress plugin before 6.3.0 leaks master key information without the need for a password, allowing attackers to download arbitrary password-protected package files.

The Download Manager WordPress plugin before 3.2.44 does not escape a generated URL before outputting it back in an attribute of the history dashboard, leading to Reflected Cross-Site Scripting

The Download Manager WordPress plugin before 3.2.34 does not sanitise and escape the packageids parameter before using it in a SQL statement, leading to a SQL injection, which can also be exploited to cause a Reflected Cross-Site Scripting issue