The Download Manager WordPress plugin before 3.3.62 does not bind its temporary download token to the requesting session nor expire it promptly, making the token a long-lived, multi-use, portable bearer token, so that an attacker who obtains one leaked download key can repeatedly download a role- or password-protected package file without authorization.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in W3 Eden Inc. Download Manager allows Functionality Bypass.This issue affects Download Manager: from n/a through 3.2.82.

The Download Manager plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.3.08 via the 'wpdmnewfile' action. This makes it possible for authenticated attackers, with Author-level access and above, to overwrite select file types outside of the originally intended directory, which may cause a denial of service.

The Download Manager plugin for WordPress is vulnerable to unauthorized access of data due to an improper authorization check on the 'protectMediaLibrary' function in all versions up to, and including, 3.2.89. This makes it possible for unauthenticated attackers to download password-protected files.

The The Download Manager plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 3.3.03. This is due to the software allowing users to execute an action that does not properly validate a value before running doshortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

The Download Manager plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the savePackage function in all versions up to, and including, 3.3.12. This makes it possible for authenticated attackers, with Author-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).

Authenticated File Upload in WordPress Download Manager <= 3.1.24 allows authenticated (Author+) users to upload files with a double extension, e.g. "payload.php.png" which is executable in some configurations. This issue affects: WordPress Download Manager version 3.1.24 and prior versions.

The Download Manager WordPress plugin before 3.2.35 does not have any authorisation checks in some of the REST API endpoints, allowing unauthenticated attackers to call them, which could lead to sensitive information disclosure, such as posts passwords (fixed in 3.2.24) and files Master Keys (fixed in 3.2.25).

The Download Manager WordPress plugin before 3.2.50 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTEADDR, which makes it possible to bypass IP-based download blocking restrictions.

The Download Manager plugin for WordPress is vulnerable to arbitrary file deletion in versions up to, and including 3.2.50. This is due to insufficient file type and path validation on the deleteFiles() function found in the ~/Admin/Menu/Packages.php file that triggers upon download post deletion. This makes it possible for contributor level users and above to supply an arbitrary file path via the 'file[files]' parameter when creating a download post and once the user deletes the post the supplied arbitrary file will be deleted. This can be used by attackers to delete the /wp-config.php file which will reset the installation and make it possible for an attacker to achieve remote code execution on the server.

The Download Manager WordPress plugin before 3.2.34 uses the uniqid php function to generate the master key for a download, allowing an attacker to brute force the key with reasonable resources giving direct download access regardless of role based restrictions or password protections set for the download.