The tagDiv Composer plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘envato_code[]’ parameter in all versions up to, and including, 5.0 due to insufficient input sanitization and output escaping within the on_ajax_register_forum_user function. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

The tagDiv Composer plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘envato_code[]’ parameter in all versions up to, and including, 5.0 due to insufficient input sanitization and output escaping within the on_ajax_check_envato_code function. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

The tagDiv Composer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'single' module in all versions up to, and including, 4.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The tagDiv Composer plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.8 via the 'td_block_title' shortcode 'block_template_id' attribute. This makes it possible for authenticated attackers, with contributor-level and above permissions, to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where php file type can be uploaded and included.

The tagDiv Composer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's button shortcode in all versions up to, and including, 4.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: The vulnerable code in this plugin is specifically tied to the tagDiv Newspaper theme. If another theme is installed (e.g., NewsMag), this code may not be present.

Cross-Site Request Forgery (CSRF) vulnerability in tagDiv tagDiv Composer allows Cross-Site Scripting (XSS).This issue affects tagDiv Composer: from n/a before 4.4.

The tagDiv Composer WordPress plugin before 4.2, used as a companion by the Newspaper and Newsmag themes from tagDiv, does not validate and escape some settings, which could allow users with Admin privileges to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

The tagDiv Composer WordPress plugin before 4.2, used as a companion by the Newspaper and Newsmag themes from tagDiv, does not have authorisation in a REST route and does not validate as well as escape some parameters when outputting them back, which could allow unauthenticated users to perform Stored Cross-Site Scripting attacks.

The tagDiv Composer WordPress plugin before 3.5, required by the Newspaper WordPress theme before 12.1 and Newsmag WordPress theme before 5.2.2, does not properly implement the Facebook login feature, allowing unauthenticated attackers to login as any user by just knowing their email address