shell bypass 403
<?php defined( 'ABSPATH' ) || exit; ?>
<!DOCTYPE html>
<html lang='en'>
<head>
<title>Something went wrong</title>
<meta charset='utf-8'>
<meta content='width=device-width, initial-scale=1' name='viewport'>
<meta content='yes' name='apple-mobile-web-app-capable'>
<meta name="robots" content="noindex"/>
<style>
body * {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
body {
background: #f6f6f6;
}
.fcal_error_wrap {
margin: 100px auto;
max-width: 600px;
background: white;
border-radius: 8px;
box-shadow: 0 0 10px rgba(0,0,0,.1);
}
.error_header {
padding: 10px 15px;
border-bottom: 1px solid #ebebeb;
}
.error_header h3 {
margin: 0;
}
.error_body {
padding: 10px 15px;
}
.error_footer {
padding: 10px 15px;
text-align: center;
border-top: 1px solid #ebebeb;
}
.error_footer a {
padding: 9px 12px;
display: inline-block;
text-decoration: none;
background: #3F51B5;
color: white;
border-radius: 6px;
}
</style>
</head>
<body>
<div class="fcal_error_wrap">
<div class="error_header">
<h3><?php echo esc_html($title); ?></h3>
</div>
<div class="error_body">
<p><?php echo wp_kses_post($body); ?></p>
</div>
<?php if (!empty($btn_url)): ?>
<div class="error_footer">
<a href="<?php echo esc_url($btn_url); ?>" class="button"><?php echo esc_html($btn_text); ?></a>
</div>
<?php endif; ?>
</div>
</body>
</html>