The Modal Window – create popup modal window plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'iframeBox' shortcode in all versions up to, and including, 6.1.5 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.

Cross-Site Request Forgery (CSRF) vulnerability in Wow-Company Modal Window allows Cross Site Request Forgery. This issue affects Modal Window: from n/a through 6.1.4.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wow-Company Modal Window allows Stored XSS.This issue affects Modal Window: from n/a through 6.0.3.

The Modal Window WordPress plugin before 5.3.10 does not have CSRF check in place when bulk deleting modals, which could allow attackers to make a logged in admin delete them via a CSRF attack

The Modal Window – create popup modal window plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 5.3.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Modal Window plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes in versions up to, and including, 5.3.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Modal Window WordPress plugin before 5.2.2 within the wow-company admin menu page allows to include() arbitrary file with PHP extension (as well as with data:// or http:// protocols), thus leading to CSRF RCE.