The Hide My WP Ghost – Security Plugin plugin for WordPress is vulnerable to IP Address Spoofing in versions up to, and including, 5.0.18. This is due to insufficient restrictions on where the IP Address information is being retrieved for request logging and login restrictions. Attackers can supply the X-Forwarded-For header with with a different IP Address that will be logged and can be used to bypass settings that may have blocked out an IP address from logging in.

The Hide My WP WordPress plugin before 6.2.9 does not properly sanitize and escape a parameter before using it in a SQL statement via an AJAX action available to unauthenticated users, leading to a SQL injection.

The WP Hide WordPress plugin through 0.0.2 does not have authorisation and CSRF checks in place when updating the custom_wpadmin_slug settings, allowing unauthenticated attackers to update it with a crafted request

The WP Hide & Security Enhancer WordPress plugin before 1.8 does not escape a parameter before outputting it back in an attribute of a backend page, leading to a Reflected Cross-Site Scripting

WordPress Hide My WP plugin (versions <= 6.2.3) can be deactivated by any unauthenticated user. It is possible to retrieve a reset token which can then be used to deactivate the plugin.

The SQL injection vulnerability in the Hide My WP WordPress plugin (versions <= 6.2.3) is possible because of how the IP address is retrieved and used inside a SQL query. The function "hmwp_get_user_ip" tries to retrieve the IP address from multiple headers, including IP address headers that the user can spoof, such as "X-Forwarded-For." As a result, the malicious payload supplied in one of these IP address headers will be directly inserted into the SQL query, making SQL injection possible.