WordPress WP Maintenance plugin <= 6.0.4 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

Authenticated (admin+) Stored Cross-Site Scripting (XSS) in WP Maintenance plugin <= 6.0.7 versions.

WP Maintenance <= 6.1.9.2 - IP Spoofing to Maintenance Mode Bypass

The WP Maintenance plugin for WordPress is vulnerable to IP Address Spoofing in all versions up to, and including, 6.1.9.2 due to insufficient IP address validation and use of user-supplied HTTP headers as a primary method for IP retrieval. This makes it possible for unauthenticated attackers to bypass maintenance mode.

WordPress WP Maintenance plugin <= 6.0.7 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

Authenticated Stored Cross-Site Scripting (XSS) vulnerability in Florent Maillefaud's WP Maintenance plugin <= 6.0.7 at WordPress.

A flaw in the WordPress plugin, WP Maintenance before 5.0.6, allowed attackers to enable a vulnerable site's maintenance mode and inject malicious code affecting site visitors. There was CSRF with resultant XSS.