Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WP Royal Royal Elementor Addons allows Stored XSS.This issue affects Royal Elementor Addons: from n/a through 1.3.982.

The Royal Elementor Addons and Templates plugin for WordPress is vulnerable to Stored DOM-based Cross-Site Scripting via the plugin's Magazine Grid/Slider widget in all versions up to, and including, 1.3.980 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.

The Royal Elementor Addons and Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘custom_upload_mimes’ function in versions up to, and including, 1.3.976 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Royal Elementor Addons and Templates for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘inline_list’ parameter in versions up to, and including, 1.3.976 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Royal Elementor Addons and Templates plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.3.87. This is due to missing or incorrect nonce validation on the wpr_update_form_action_meta function. This makes it possible for unauthenticated attackers to post metadata via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Royal Elementor Addons and Templates WordPress plugin before 1.3.81 does not ensure that users accessing posts via an AJAX action (and REST endpoint, currently disabled in the plugin) have the right to do so, allowing unauthenticated users to access arbitrary draft, private and password protected posts/pages content

The Royal Elementor Addons and Templates WordPress plugin before 1.3.79 does not properly validate uploaded files, which could allow unauthenticated users to upload arbitrary files, such as PHP and achieve RCE.

Cross-Site Request Forgery (CSRF) vulnerability in P Royal Royal Elementor Addons and Templates plugin <= 1.3.75 versions.

The Royal Elementor Addons plugin for WordPress is vulnerable to unauthenticated API key disclosure in versions up to, and including, 1.3.70 due to the plugin adding the API key to the source code of any page running the MailChimp block. This makes it possible for unauthenticated attackers to obtain a site's MailChimp API key. We recommend resetting any MailChimp API keys if running a vulnerable version of this plugin with the MailChimp block enabled as the API key may have been compromised.