The Coming Soon Page & Maintenance Mode plugin for WordPress is vulnerable to unauthorized access of data due to an improperly implemented URL check in the wpsm_coming_soon_redirect function in all versions up to, and including, 2.2.1. This makes it possible for unauthenticated attackers to view a site with maintenance mode or coming-soon mode enabled to view the site's content.

Deserialization of Untrusted Data vulnerability in Kalli Dan. KD Coming Soon.This issue affects KD Coming Soon: from n/a through 1.7.

The Minimal Coming Soon – Coming Soon Page plugin for WordPress is vulnerable to maintenance mode bypass and information disclosure in all versions up to, and including, 2.37. This is due to the plugin improperly validating the request path. This makes it possible for unauthenticated attackers to bypass maintenance mode and view pages that should be hidden.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpexpertsio Rocket Maintenance Mode & Coming Soon Page allows Stored XSS.This issue affects Rocket Maintenance Mode & Coming Soon Page: from n/a through 4.3.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Weblizar Coming Soon Page – Responsive Coming Soon & Maintenance Mode allows SQL Injection.This issue affects Coming Soon Page – Responsive Coming Soon & Maintenance Mode: from n/a through 1.5.9.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Ankit Agarwal, Priyanshu Mittal Easy Coming Soon plugin <= 2.3 versions.

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Chop-Chop Coming Soon Chop Chop plugin <= 2.2.4 versions.

The Coming Soon & Maintenance Mode Page plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.57. This is due to missing or incorrect nonce validation on the save_meta_box() function. This makes it possible for unauthenticated attackers to save meta boxes via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Coming Soon & Maintenance Mode Page plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.57. This is due to confusing logic functions missing or having incorrect nonce validation. This makes it possible for unauthenticated attackers to gain and perform otherwise unauthorized access and actions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The WordPress Coming Soon Page & Maintenance Mode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the logo_width, logo_height, rcsp_logo_url, home_sec_link_txt, rcsp_headline and rcsp_description parameters in versions up to, and including, 1.8.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.