Captcha Them All

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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '"Error generating audio captcha on letter '$letter': "'.

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Use of a direct database call is discouraged.

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Missing $domain parameter in function call to __().

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Direct database call without caching detected. Consider using wp_cache_get() / wp_cache_set() or wp_cache_delete().

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Unescaped parameter $table used in $wpdb->get_results()\n$table assigned unsafely at line 158.

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File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fclose().

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File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fopen().

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

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date() is affected by runtime timezone changes which can cause date/time to be incorrectly displayed. Use gmdate() instead.

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File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fread().

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File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fwrite().

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Use of the backtick operator is forbidden

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Detected usage of a non-sanitized, non-validated input variable _SERVER: "<br /><br /><em>IP Address:</em> {$_SERVER['REMOTE_ADDR']}<br />"

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rand() is discouraged. Use the far less predictable wp_rand() instead.

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Accessing the database directly should be avoided. Please use the $wpdb object and associated functions instead. Found: \PDO.