To exploit the vulnerability, it is necessary:

The WP-Recall WordPress plugin before 16.26.12 does not sanitize and escape a parameter before using it in a SQL statement, allowing admins to perform SQL injection attacks

The Stylish Google Sheet Reader 4.0 WordPress plugin before 4.1 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

The aoa-downloadable WordPress plugin through 0.1.0 lacks authorization and authentication for requests to its download.php endpoint, allowing unauthenticated visitors to make requests to arbitrary URLs.

The aoa-downloadable WordPress plugin through 0.1.0 doesn't validate a parameter in its download function, allowing unauthenticated attackers to download arbitrary files from the server

The AFI WordPress plugin before 1.100.0 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

The AFI WordPress plugin before 1.100.0 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

The IP Based Login WordPress plugin before 2.4.1 does not have CSRF checks in some places, which could allow attackers to make logged in users delete all logs via a CSRF attack

The Simple Banner WordPress plugin before 3.0.4 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

The Smart Maintenance Mode WordPress plugin before 1.5.2 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).