Login-Logout

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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$admin_link'.

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All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.

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strip_tags() is discouraged. Use the more comprehensive wp_strip_all_tags() instead.

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Detected usage of a non-sanitized input variable: $_SERVER['HTTP_HOST']

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Detected usage of a possibly undefined superglobal array index: $_SERVER['HTTP_HOST']. Check that the array index exists before using it.

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$_SERVER['HTTP_HOST'] not unslashed before sanitization. Use wp_unslash() or similar

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Hidden files are not permitted.

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Classes declared by a theme/plugin should start with the theme/plugin prefix. Found: "WP_Widget_Login_Logout".

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PHP file should prevent direct access. Add a check like: if ( ! defined( 'ABSPATH' ) ) exit;

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Tested up to: 5.5 < 7.0. The "Tested up to" value in your plugin is not set to the current version of WordPress. This means your plugin will not show up in searches, as we require plugins to be compatible and documented as tested up to the most recent version of WordPress.