Securimage-WP-Fixed <= 3.5.4 - Reflected Cross-Site Scripting (XSS)

The plugin is affected by a Reflected Cross-Site Scripting issue due to the use of $SERVER'PHPSELF' in the /securimage-wp.php file which allows attackers to inject arbitrary web scripts PoC https://example.com/wp-admin/options-general.php/"/script%3E?page=securimage-wp-options%2F...