Chris Kellum has discovered two vulnerabilities in the MoodThingy Mood Rating Widget plugin for WordPress, which can be exploited by malicious people to conduct SQL injection attacks.

Input passed via the "moodthingyvote" and "postID" parameters to wp-admin/admin-ajax.php (when "action" is set to "cast_vote") is not properly sanitised in the "lydl_store_results()" function in wp-content/plugins/moodthingy-mood-rating-widget/moodthingy.php before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

The vulnerabilities are confirmed in version 0.9. Other versions may also be affected.

Solution
Update to version 0.9.2.

Provided and/or discovered by
Chris Kellum.

Changelog
Further details available to Secunia VIM customers

Original Advisory
MoodThingy Mood Rating Widget:
http://plugins.trac.wordpress.org/changeset/569492
http://plugins.trac.wordpress.org/changeset/570426

Chris Kellum:
http://bot24.blogspot.dk/2012/07/wordpress-moodthingy-widget-v087-blind.html

Deep Links
Links available to Secunia VIM customers