Details
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Software: Featured Comments
Version: 1.2.1
Homepage: http://wordpress.org/plugins/feature-comments/
Advisory ID: dxw-2014-1360
CVE: Awaiting assignment
CVSS: 4.3 (Medium; AV:N/AC:M/Au:N/C:N/I:P/A:N)

Description
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CSRF in Featured Comments 1.2.1 allows an attacker to set and unset comment statuses

Vulnerability
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An attacker able to convince an admin to visit a link of their choosing is able to set/unset the buried/featured status of any comments.

Proof of concept
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If a logged-in administrator user clicks the submit button on this form comment with ID of 9 will be featured. (In a real attack the form can be made to auto-submit using Javascript).
<form action=\"http://localhost/wp-admin/admin-ajax.php?action=feature_comments\" method=\"POST\">
  <input type=\"text\" name=\"do\" value=\"feature\">
  <input type=\"text\" name=\"comment_id\" value=\"9\">
  <input type=\"submit\">
</form>

Mitigations
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Disable the plugin until a fix is available.

Disclosure policy
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dxw believes in responsible disclosure. Your attention is drawn to our disclosure policy: https://security.dxw.com/disclosure/

Please contact us on security@dxw.com to acknowledge this report if you received it via a third party (for example, plugins@wordpress.org) as they generally cannot communicate with us on your behalf.

This vulnerability will be published if we do not receive a response to this report with 14 days.

Timeline
================

2014-05-22: Discovered
2014-05-23: Email address for report requested via contact form at pippinsplugins.com
2014-05-26: Author acknowledged report
2014-06-10: dxw chased to establish timeline for a fix


Discovered by dxw:
================
Tom Adams
Please visit security.dxw.com for more information.